Believe Industry Company (Beli Rollforming) - Metal Coil Calculator<\/title>\r\n <style>\r\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f4f7f6; color: #333; padding: 20px; }\r\n .container { max-width: 650px; margin: 0 auto; background: #fff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); }\r\n \r\n \/* Company Header & Footer Styles *\/\r\n .company-header { text-align: center; border-bottom: 2px solid #3498db; padding-bottom: 20px; margin-bottom: 25px; }\r\n .company-logo { max-width: 200px; max-height: 80px; margin-bottom: 10px; }\r\n .company-name { font-size: 24px; font-weight: bold; color: #2c3e50; margin: 0 0 5px 0; }\r\n .company-contact { font-size: 14px; color: #7f8c8d; margin: 0; }\r\n .company-contact a { color: #3498db; text-decoration: none; }\r\n .company-contact a:hover { text-decoration: underline; }\r\n .company-footer { text-align: center; border-top: 1px solid #eee; padding-top: 15px; margin-top: 30px; font-size: 12px; color: #95a5a6; }\r\n\r\n h2 { text-align: center; color: #2c3e50; margin-bottom: 20px;}\r\n .form-group { margin-bottom: 15px; }\r\n label { display: block; font-weight: bold; margin-bottom: 5px; color: #34495e; }\r\n select, input { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; font-size: 15px; }\r\n .radio-group { margin-bottom: 20px; display: flex; gap: 15px; background: #f8f9fa; padding: 10px; border-radius: 4px; border: 1px solid #e9ecef;}\r\n button { width: 100%; padding: 14px; background: #3498db; color: white; border: none; border-radius: 4px; font-size: 16px; font-weight: bold; cursor: pointer; transition: 0.3s; }\r\n button:hover { background: #2980b9; }\r\n .result-box { margin-top: 20px; padding: 20px; background: #e8f4f8; border-left: 5px solid #3498db; border-radius: 4px; display: none; }\r\n .result-item { margin-bottom: 10px; font-size: 16px; }\r\n .price-note { font-size: 12px; color: #7f8c8d; margin-top: 15px; font-style: italic; line-height: 1.4; }\r\n <\/style>\r\n<\/head>\r\n<body>\r\n\r\n<div class=\"container\">\r\n \r\n <div class=\"company-header\">\r\n <img decoding=\"async\" src=\"https:\/\/believeindustry.company\/wp-content\/uploads\/2019\/01\/believe-industry-logo-1.png\" alt=\"Beli Rollforming Logo\" class=\"company-logo\" title=\"\">\r\n <h1 class=\"company-name\">Believe Industry Company (Beli Rollforming)<\/h1>\r\n <p class=\"company-contact\">\r\n \ud83d\udcde +86 18616927760 | \r\n \u2709\ufe0f <a href=\"mailto:Enquiry@believeindustry.com\">Enquiry@believeindustry.com<\/a> | \r\n \ud83c\udf10 <a href=\"https:\/\/believeindustry.company\" target=\"_blank\">believeindustry.company<\/a>\r\n <\/p>\r\n <\/div>\r\n\r\n <h2>Metal Coil Calculator<\/h2>\r\n\r\n <div class=\"form-group\">\r\n <label>Material<\/label>\r\n <select id=\"material\">\r\n <option value=\"Steel\">Carbon Steel<\/option>\r\n <option value=\"Stainless\">Stainless Steel<\/option>\r\n <option value=\"Aluminum\">Aluminum<\/option>\r\n <option value=\"Copper\">Copper<\/option>\r\n <\/select>\r\n <\/div>\r\n\r\n <div class=\"form-group radio-group\">\r\n <label><input type=\"radio\" name=\"calcMode\" value=\"1\" checked onchange=\"toggleInputs()\"> Mode 1: Known Weight<\/label>\r\n <label><input type=\"radio\" name=\"calcMode\" value=\"2\" onchange=\"toggleInputs()\"> Mode 2: Known Diameters<\/label>\r\n <\/div>\r\n\r\n <div class=\"form-group\">\r\n <label>Coil Width (mm)<\/label>\r\n <input type=\"number\" id=\"width\" placeholder=\"e.g., 1200\">\r\n <\/div>\r\n <div class=\"form-group\">\r\n <label>Coil Thickness (mm)<\/label>\r\n <input type=\"number\" id=\"thickness\" placeholder=\"e.g., 1.5\">\r\n <\/div>\r\n\r\n <div class=\"form-group\" id=\"group-weight\">\r\n <label>Coil Weight (kg)<\/label>\r\n <input type=\"number\" id=\"weight\" placeholder=\"e.g., 5000\">\r\n <\/div>\r\n\r\n <div id=\"group-diameters\" style=\"display: none;\">\r\n <div class=\"form-group\">\r\n <label>External Diameter \/ OD (mm)<\/label>\r\n <input type=\"number\" id=\"od\" placeholder=\"e.g., 1500\">\r\n <\/div>\r\n <div class=\"form-group\">\r\n <label>Internal Diameter \/ ID (mm)<\/label>\r\n <input type=\"number\" id=\"id\" placeholder=\"e.g., 508\">\r\n <\/div>\r\n <\/div>\r\n\r\n <button onclick=\"calculate()\">Calculate Specifications & Pricing<\/button>\r\n\r\n <div class=\"result-box\" id=\"results\">\r\n <div class=\"result-item\" id=\"res-length\"><\/div>\r\n <div class=\"result-item\" id=\"res-weight\"><\/div>\r\n <div class=\"result-item\" id=\"res-region\"><\/div>\r\n <hr style=\"border: 0; border-top: 1px solid #bdc3c7; margin: 15px 0;\">\r\n <div class=\"result-item\" id=\"res-total\"><\/div>\r\n <div class=\"result-item\" id=\"res-meter\"><\/div>\r\n <div class=\"result-item\" id=\"res-foot\"><\/div>\r\n <div class=\"price-note\">Prices are approximated based on current market averages and simulated local currency conversions. For official quotes, please contact our sales team at +86 18616927760.<\/div>\r\n <\/div>\r\n\r\n <div class=\"company-footer\">\r\n <p>No 1, Yudong Road, Huishan District | Wuxi, Jiangsu 204101<\/p>\r\n <p>© 2026 Believe Industry Company (Beli Rollforming). All rights reserved.<\/p>\r\n <\/div>\r\n\r\n<\/div>\r\n\r\n<script>\r\n \/\/ Densities in kg\/m\u00b3\r\n const densities = {\r\n 'Steel': 7850,\r\n 'Stainless': 7930,\r\n 'Aluminum': 2700,\r\n 'Copper': 8960\r\n };\r\n\r\n function toggleInputs() {\r\n const mode = document.querySelector('input[name=\"calcMode\"]:checked').value;\r\n if (mode === \"1\") {\r\n document.getElementById('group-weight').style.display = 'block';\r\n document.getElementById('group-diameters').style.display = 'none';\r\n } else {\r\n document.getElementById('group-weight').style.display = 'none';\r\n document.getElementById('group-diameters').style.display = 'block';\r\n }\r\n }\r\n\r\n async function fetchPricingData(material) {\r\n let region = \"Unknown Region\";\r\n let currency = \"USD\";\r\n let exchangeRate = 1;\r\n\r\n try {\r\n const geoRes = await fetch('https:\/\/ipapi.co\/json\/');\r\n const geoData = await geoRes.json();\r\n if(geoData.country_name) {\r\n region = geoData.country_name;\r\n currency = geoData.currency;\r\n }\r\n } catch (e) {\r\n console.log(\"Ad-blocker or network blocked IP fetch. Defaulting to USD.\");\r\n }\r\n\r\n const basePricesUSD = { 'Steel': 0.85, 'Stainless': 2.50, 'Aluminum': 2.20, 'Copper': 10.00 };\r\n const mockRates = { \"EUR\": 0.92, \"GBP\": 0.79, \"INR\": 83.00, \"CAD\": 1.35, \"AUD\": 1.52, \"JPY\": 150.0 };\r\n if (currency !== \"USD\" && mockRates[currency]) { exchangeRate = mockRates[currency]; }\r\n\r\n const pricePerKg = basePricesUSD[material] * exchangeRate;\r\n return { pricePerKg, region, currency };\r\n }\r\n\r\n async function calculate() {\r\n const material = document.getElementById('material').value;\r\n const mode = document.querySelector('input[name=\"calcMode\"]:checked').value;\r\n \r\n const w_mm = parseFloat(document.getElementById('width').value);\r\n const t_mm = parseFloat(document.getElementById('thickness').value);\r\n const density = densities[material];\r\n\r\n if (!w_mm || !t_mm) { alert(\"Please enter width and thickness.\"); return; }\r\n\r\n let weight_kg = 0;\r\n let length_m = 0;\r\n const w = w_mm \/ 1000;\r\n const t = t_mm \/ 1000;\r\n\r\n if (mode === \"1\") {\r\n weight_kg = parseFloat(document.getElementById('weight').value);\r\n if (!weight_kg) { alert(\"Please enter weight.\"); return; }\r\n length_m = weight_kg \/ (w * t * density);\r\n } else {\r\n const od_mm = parseFloat(document.getElementById('od').value);\r\n const id_mm = parseFloat(document.getElementById('id').value);\r\n if (!od_mm || !id_mm) { alert(\"Please enter OD and ID.\"); return; }\r\n if (id_mm >= od_mm) { alert(\"OD must be strictly greater than ID.\"); return; }\r\n\r\n const od = od_mm \/ 1000;\r\n const id = id_mm \/ 1000;\r\n const volume = (Math.PI \/ 4) * (Math.pow(od, 2) - Math.pow(id, 2)) * w;\r\n weight_kg = volume * density;\r\n length_m = weight_kg \/ (w * t * density);\r\n }\r\n\r\n document.getElementById('res-length').innerHTML = `<strong>Coil Length:<\/strong> ${length_m.toFixed(2)} meters (${(length_m * 3.28084).toFixed(2)} feet)`;\r\n document.getElementById('res-weight').innerHTML = `<strong>Coil Weight:<\/strong> ${weight_kg.toFixed(2)} kg`;\r\n document.getElementById('res-region').innerHTML = `<em>Fetching regional market data...<\/em>`;\r\n document.getElementById('results').style.display = 'block';\r\n\r\n const priceData = await fetchPricingData(material);\r\n const totalCost = weight_kg * priceData.pricePerKg;\r\n const costPerMeter = totalCost \/ length_m;\r\n const costPerFoot = costPerMeter \/ 3.28084;\r\n\r\n document.getElementById('res-region').innerHTML = `<strong>Region Detected:<\/strong> ${priceData.region} | <strong>Base Price\/kg:<\/strong> ${priceData.pricePerKg.toFixed(2)} ${priceData.currency}`;\r\n document.getElementById('res-total').innerHTML = `<strong>Estimated Total Cost:<\/strong> ${totalCost.toFixed(2)} ${priceData.currency}`;\r\n document.getElementById('res-meter').innerHTML = `<strong>Cost per 1 Meter:<\/strong> ${costPerMeter.toFixed(2)} ${priceData.currency}`;\r\n document.getElementById('res-foot').innerHTML = `<strong>Cost per 1 Foot:<\/strong> ${costPerFoot.toFixed(2)} ${priceData.currency}`;\r\n }\r\n<\/script>\r\n\r\n<\/body>\r\n<\/html>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f87d753 elementor-widget elementor-widget-text-editor\" data-id=\"f87d753\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-path-to-node=\"5\">At <b data-path-to-node=\"5\" data-index-in-node=\"3\">Believe Industry Company (Beli Rollforming)<\/b>, we know that your time is valuable. You shouldn’t have to manually crunch numbers or dig up density charts every time a new coil arrives. That is why we developed our free, interactive <b data-path-to-node=\"5\" data-index-in-node=\"233\">Metal Coil Calculator<\/b> to do the heavy lifting for you.<\/p><p data-path-to-node=\"5\">Whether you are purchasing raw materials, setting up a roll forming line, or auditing your inventory, accurate metal coil calculations are essential. A slight miscalculation in coil length or weight can lead to production delays, material shortages, or blown budgets.<\/p><p data-path-to-node=\"4\"><span data-path-to-node=\"4,1\"><span class=\"citation-367\">Whether auditing warehouse inventory or feeding a high-speed <\/span><a class=\"ng-star-inserted\" href=\"https:\/\/www.google.com\/search?q=https:\/\/believeindustry.company\/slitting-line\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQjws\"><span class=\"citation-367\">slitting line<\/span><\/a><\/span><span data-path-to-node=\"4,3\">, precision is vital. A slight miscalculation causes severe production delays. To avoid this, our Metal Coil Calculator instantly processes Outside Diameter (OD), Inside Diameter (ID), width, and thickness to give you actionable data.<\/span><\/p><p id=\"p-rc_490c64c17e58846a-97\" data-path-to-node=\"5\"><span data-path-to-node=\"5,1\"><span class=\"citation-366\">Before setting up your <\/span><a class=\"ng-star-inserted\" href=\"https:\/\/believeindustry.company\/roll-forming-equipment\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQkQs\"><span class=\"citation-366\">roll forming equipment<\/span><\/a> <\/span><span data-path-to-node=\"5,4\"><span class=\"citation-365\">, utilize this tool for a <\/span><a class=\"ng-star-inserted\" href=\"https:\/\/believeindustry.company\/roll-forming-machine-line\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQkgs\"><span class=\"citation-365\">comprehensive analysis of roll forming machine<\/span><\/a><span class=\"citation-365\"> setups<\/span><\/span><span data-path-to-node=\"5,6\">. <\/span><span data-path-to-node=\"5,8\"><span class=\"citation-364\">By computing exactly how much material sits on your <\/span><a class=\"ng-star-inserted\" href=\"https:\/\/believeindustry.company\/uncoiler\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQkws\"><span class=\"citation-364\">uncoiler<\/span><\/a><\/span><span data-path-to-node=\"5,10\">, you eliminate scrap. We highly recommend pairing our calculator\u2019s precise outputs with premium machinery from <a class=\"ng-star-inserted\" href=\"https:\/\/belirollforming.com\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQlAs\">Beli Rollforming<\/a> and following <a class=\"ng-star-inserted\" href=\"https:\/\/worldsteel.org\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQlQs\">World Steel Association<\/a> safety standards.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c6510e elementor-widget elementor-widget-heading\" data-id=\"2c6510e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What Can the Calculator Do?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76dde3f elementor-widget elementor-widget-text-editor\" data-id=\"76dde3f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-path-to-node=\"7\">Our tool is designed to provide instant, precise metrics for the most common metals used in the industry, including Carbon Steel, Stainless Steel, Aluminum, and Copper.<\/p><p data-path-to-node=\"8\">Here is what you can figure out in seconds:<\/p><ul data-path-to-node=\"9\"><li><p data-path-to-node=\"9,0,0\"><b data-path-to-node=\"9,0,0\" data-index-in-node=\"0\">Find Coil Length:<\/b> Input your coil’s weight, width, and thickness to instantly find out how many meters (and feet) of material you have.<\/p><\/li><li><p data-path-to-node=\"9,1,0\"><b data-path-to-node=\"9,1,0\" data-index-in-node=\"0\">Find Coil Weight:<\/b> Only know the dimensions? Input the Outside Diameter (OD), Inside Diameter (ID), width, and thickness to get an accurate weight estimation.<\/p><\/li><li><p data-path-to-node=\"9,2,0\"><b data-path-to-node=\"9,2,0\" data-index-in-node=\"0\">Estimate Material Costs:<\/b> The tool automatically detects your region to provide a baseline cost estimation for your specific material, breaking down the cost per meter and cost per foot.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-485db8e elementor-widget elementor-widget-heading\" data-id=\"485db8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How to Use the Tool<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e840ceb elementor-widget elementor-widget-text-editor\" data-id=\"e840ceb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-path-to-node=\"11\">Using the calculator is simple and requires no software installation.<\/p><p data-path-to-node=\"11\"><b data-path-to-node=\"12,0,0\" data-index-in-node=\"0\">Select Your Material:<\/b> Choose between Steel, Stainless, Aluminum, or Copper from the dropdown menu. This automatically applies the correct material density to the background math.<\/p><ul><li data-path-to-node=\"12,1,0\"><b data-path-to-node=\"12,1,0\" data-index-in-node=\"0\">Choose Your Mode:<\/b> * Select <b data-path-to-node=\"12,1,0\" data-index-in-node=\"27\">Mode 1 (Known Weight)<\/b> if you have a scale reading or shipping manifest and need to know the linear length.<\/li><li data-path-to-node=\"12,1,0\">Select <b data-path-to-node=\"12,1,1,0,0\" data-index-in-node=\"7\">Mode 2 (Known Diameters)<\/b> if the coil is sitting on the floor and you can only measure its physical width, OD, and ID.<\/li><li data-path-to-node=\"12,1,0\"><b data-path-to-node=\"12,2,0\" data-index-in-node=\"0\">Enter Your Dimensions:<\/b> Input the width and thickness in millimeters (mm).<\/li><li data-path-to-node=\"12,1,0\"><b data-path-to-node=\"12,3,0\" data-index-in-node=\"0\">Calculate:<\/b> Hit the blue button. The tool will instantly generate your length, weight, and a baseline cost estimate.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Believe Industry Company (Beli Rollforming) – Metal Coil Calculator Believe Industry Company (Beli Rollforming) \ud83d\udcde +86 18616927760 | \u2709\ufe0f Enquiry@believeindustry.com | \ud83c\udf10 believeindustry.company Metal Coil Calculator Material Carbon SteelStainless SteelAluminumCopper Mode 1: Known Weight Mode 2: Known Diameters Coil Width (mm) Coil Thickness (mm) Coil Weight (kg) External Diameter \/ OD (mm) Internal Diameter \/ […]<\/p>\n","protected":false},"author":2,"featured_media":21944,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_wpcom_ai_launchpad_about_page":false,"_wpcom_ai_launchpad_gallery_page":false,"_wpcom_ai_launchpad_contact_page":false,"_wpcom_ai_launchpad_events_page":false,"_wpcom_ai_launchpad_video_page":false,"_wpcom_ai_launchpad_portfolio_piece":false,"footnotes":"","big_sky_generated":false},"tags":[],"class_list":["post-21105","page","type-page","status-publish","has-post-thumbnail","hentry"],"blocksy_meta":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P9K5n8-5up","jetpack_likes_enabled":false,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/pages\/21105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/comments?post=21105"}],"version-history":[{"count":24,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/pages\/21105\/revisions"}],"predecessor-version":[{"id":21946,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/pages\/21105\/revisions\/21946"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/media\/21944"}],"wp:attachment":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/media?parent=21105"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/tags?post=21105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

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\n\t\t\t\t\t\r\n\r\n\r\n \r\n \r\n Believe Industry Company (Beli Rollforming) - Metal Coil Calculator<\/title>\r\n <style>\r\n body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: #f4f7f6; color: #333; padding: 20px; }\r\n .container { max-width: 650px; margin: 0 auto; background: #fff; padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); }\r\n \r\n \/* Company Header & Footer Styles *\/\r\n .company-header { text-align: center; border-bottom: 2px solid #3498db; padding-bottom: 20px; margin-bottom: 25px; }\r\n .company-logo { max-width: 200px; max-height: 80px; margin-bottom: 10px; }\r\n .company-name { font-size: 24px; font-weight: bold; color: #2c3e50; margin: 0 0 5px 0; }\r\n .company-contact { font-size: 14px; color: #7f8c8d; margin: 0; }\r\n .company-contact a { color: #3498db; text-decoration: none; }\r\n .company-contact a:hover { text-decoration: underline; }\r\n .company-footer { text-align: center; border-top: 1px solid #eee; padding-top: 15px; margin-top: 30px; font-size: 12px; color: #95a5a6; }\r\n\r\n h2 { text-align: center; color: #2c3e50; margin-bottom: 20px;}\r\n .form-group { margin-bottom: 15px; }\r\n label { display: block; font-weight: bold; margin-bottom: 5px; color: #34495e; }\r\n select, input { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; font-size: 15px; }\r\n .radio-group { margin-bottom: 20px; display: flex; gap: 15px; background: #f8f9fa; padding: 10px; border-radius: 4px; border: 1px solid #e9ecef;}\r\n button { width: 100%; padding: 14px; background: #3498db; color: white; border: none; border-radius: 4px; font-size: 16px; font-weight: bold; cursor: pointer; transition: 0.3s; }\r\n button:hover { background: #2980b9; }\r\n .result-box { margin-top: 20px; padding: 20px; background: #e8f4f8; border-left: 5px solid #3498db; border-radius: 4px; display: none; }\r\n .result-item { margin-bottom: 10px; font-size: 16px; }\r\n .price-note { font-size: 12px; color: #7f8c8d; margin-top: 15px; font-style: italic; line-height: 1.4; }\r\n <\/style>\r\n<\/head>\r\n<body>\r\n\r\n<div class=\"container\">\r\n \r\n <div class=\"company-header\">\r\n <img decoding=\"async\" src=\"https:\/\/believeindustry.company\/wp-content\/uploads\/2019\/01\/believe-industry-logo-1.png\" alt=\"Beli Rollforming Logo\" class=\"company-logo\" title=\"\">\r\n <h1 class=\"company-name\">Believe Industry Company (Beli Rollforming)<\/h1>\r\n <p class=\"company-contact\">\r\n \ud83d\udcde +86 18616927760 | \r\n \u2709\ufe0f <a href=\"mailto:Enquiry@believeindustry.com\">Enquiry@believeindustry.com<\/a> | \r\n \ud83c\udf10 <a href=\"https:\/\/believeindustry.company\" target=\"_blank\">believeindustry.company<\/a>\r\n <\/p>\r\n <\/div>\r\n\r\n <h2>Metal Coil Calculator<\/h2>\r\n\r\n <div class=\"form-group\">\r\n <label>Material<\/label>\r\n <select id=\"material\">\r\n <option value=\"Steel\">Carbon Steel<\/option>\r\n <option value=\"Stainless\">Stainless Steel<\/option>\r\n <option value=\"Aluminum\">Aluminum<\/option>\r\n <option value=\"Copper\">Copper<\/option>\r\n <\/select>\r\n <\/div>\r\n\r\n <div class=\"form-group radio-group\">\r\n <label><input type=\"radio\" name=\"calcMode\" value=\"1\" checked onchange=\"toggleInputs()\"> Mode 1: Known Weight<\/label>\r\n <label><input type=\"radio\" name=\"calcMode\" value=\"2\" onchange=\"toggleInputs()\"> Mode 2: Known Diameters<\/label>\r\n <\/div>\r\n\r\n <div class=\"form-group\">\r\n <label>Coil Width (mm)<\/label>\r\n <input type=\"number\" id=\"width\" placeholder=\"e.g., 1200\">\r\n <\/div>\r\n <div class=\"form-group\">\r\n <label>Coil Thickness (mm)<\/label>\r\n <input type=\"number\" id=\"thickness\" placeholder=\"e.g., 1.5\">\r\n <\/div>\r\n\r\n <div class=\"form-group\" id=\"group-weight\">\r\n <label>Coil Weight (kg)<\/label>\r\n <input type=\"number\" id=\"weight\" placeholder=\"e.g., 5000\">\r\n <\/div>\r\n\r\n <div id=\"group-diameters\" style=\"display: none;\">\r\n <div class=\"form-group\">\r\n <label>External Diameter \/ OD (mm)<\/label>\r\n <input type=\"number\" id=\"od\" placeholder=\"e.g., 1500\">\r\n <\/div>\r\n <div class=\"form-group\">\r\n <label>Internal Diameter \/ ID (mm)<\/label>\r\n <input type=\"number\" id=\"id\" placeholder=\"e.g., 508\">\r\n <\/div>\r\n <\/div>\r\n\r\n <button onclick=\"calculate()\">Calculate Specifications & Pricing<\/button>\r\n\r\n <div class=\"result-box\" id=\"results\">\r\n <div class=\"result-item\" id=\"res-length\"><\/div>\r\n <div class=\"result-item\" id=\"res-weight\"><\/div>\r\n <div class=\"result-item\" id=\"res-region\"><\/div>\r\n <hr style=\"border: 0; border-top: 1px solid #bdc3c7; margin: 15px 0;\">\r\n <div class=\"result-item\" id=\"res-total\"><\/div>\r\n <div class=\"result-item\" id=\"res-meter\"><\/div>\r\n <div class=\"result-item\" id=\"res-foot\"><\/div>\r\n <div class=\"price-note\">Prices are approximated based on current market averages and simulated local currency conversions. For official quotes, please contact our sales team at +86 18616927760.<\/div>\r\n <\/div>\r\n\r\n <div class=\"company-footer\">\r\n <p>No 1, Yudong Road, Huishan District | Wuxi, Jiangsu 204101<\/p>\r\n <p>© 2026 Believe Industry Company (Beli Rollforming). All rights reserved.<\/p>\r\n <\/div>\r\n\r\n<\/div>\r\n\r\n<script>\r\n \/\/ Densities in kg\/m\u00b3\r\n const densities = {\r\n 'Steel': 7850,\r\n 'Stainless': 7930,\r\n 'Aluminum': 2700,\r\n 'Copper': 8960\r\n };\r\n\r\n function toggleInputs() {\r\n const mode = document.querySelector('input[name=\"calcMode\"]:checked').value;\r\n if (mode === \"1\") {\r\n document.getElementById('group-weight').style.display = 'block';\r\n document.getElementById('group-diameters').style.display = 'none';\r\n } else {\r\n document.getElementById('group-weight').style.display = 'none';\r\n document.getElementById('group-diameters').style.display = 'block';\r\n }\r\n }\r\n\r\n async function fetchPricingData(material) {\r\n let region = \"Unknown Region\";\r\n let currency = \"USD\";\r\n let exchangeRate = 1;\r\n\r\n try {\r\n const geoRes = await fetch('https:\/\/ipapi.co\/json\/');\r\n const geoData = await geoRes.json();\r\n if(geoData.country_name) {\r\n region = geoData.country_name;\r\n currency = geoData.currency;\r\n }\r\n } catch (e) {\r\n console.log(\"Ad-blocker or network blocked IP fetch. Defaulting to USD.\");\r\n }\r\n\r\n const basePricesUSD = { 'Steel': 0.85, 'Stainless': 2.50, 'Aluminum': 2.20, 'Copper': 10.00 };\r\n const mockRates = { \"EUR\": 0.92, \"GBP\": 0.79, \"INR\": 83.00, \"CAD\": 1.35, \"AUD\": 1.52, \"JPY\": 150.0 };\r\n if (currency !== \"USD\" && mockRates[currency]) { exchangeRate = mockRates[currency]; }\r\n\r\n const pricePerKg = basePricesUSD[material] * exchangeRate;\r\n return { pricePerKg, region, currency };\r\n }\r\n\r\n async function calculate() {\r\n const material = document.getElementById('material').value;\r\n const mode = document.querySelector('input[name=\"calcMode\"]:checked').value;\r\n \r\n const w_mm = parseFloat(document.getElementById('width').value);\r\n const t_mm = parseFloat(document.getElementById('thickness').value);\r\n const density = densities[material];\r\n\r\n if (!w_mm || !t_mm) { alert(\"Please enter width and thickness.\"); return; }\r\n\r\n let weight_kg = 0;\r\n let length_m = 0;\r\n const w = w_mm \/ 1000;\r\n const t = t_mm \/ 1000;\r\n\r\n if (mode === \"1\") {\r\n weight_kg = parseFloat(document.getElementById('weight').value);\r\n if (!weight_kg) { alert(\"Please enter weight.\"); return; }\r\n length_m = weight_kg \/ (w * t * density);\r\n } else {\r\n const od_mm = parseFloat(document.getElementById('od').value);\r\n const id_mm = parseFloat(document.getElementById('id').value);\r\n if (!od_mm || !id_mm) { alert(\"Please enter OD and ID.\"); return; }\r\n if (id_mm >= od_mm) { alert(\"OD must be strictly greater than ID.\"); return; }\r\n\r\n const od = od_mm \/ 1000;\r\n const id = id_mm \/ 1000;\r\n const volume = (Math.PI \/ 4) * (Math.pow(od, 2) - Math.pow(id, 2)) * w;\r\n weight_kg = volume * density;\r\n length_m = weight_kg \/ (w * t * density);\r\n }\r\n\r\n document.getElementById('res-length').innerHTML = `<strong>Coil Length:<\/strong> ${length_m.toFixed(2)} meters (${(length_m * 3.28084).toFixed(2)} feet)`;\r\n document.getElementById('res-weight').innerHTML = `<strong>Coil Weight:<\/strong> ${weight_kg.toFixed(2)} kg`;\r\n document.getElementById('res-region').innerHTML = `<em>Fetching regional market data...<\/em>`;\r\n document.getElementById('results').style.display = 'block';\r\n\r\n const priceData = await fetchPricingData(material);\r\n const totalCost = weight_kg * priceData.pricePerKg;\r\n const costPerMeter = totalCost \/ length_m;\r\n const costPerFoot = costPerMeter \/ 3.28084;\r\n\r\n document.getElementById('res-region').innerHTML = `<strong>Region Detected:<\/strong> ${priceData.region} | <strong>Base Price\/kg:<\/strong> ${priceData.pricePerKg.toFixed(2)} ${priceData.currency}`;\r\n document.getElementById('res-total').innerHTML = `<strong>Estimated Total Cost:<\/strong> ${totalCost.toFixed(2)} ${priceData.currency}`;\r\n document.getElementById('res-meter').innerHTML = `<strong>Cost per 1 Meter:<\/strong> ${costPerMeter.toFixed(2)} ${priceData.currency}`;\r\n document.getElementById('res-foot').innerHTML = `<strong>Cost per 1 Foot:<\/strong> ${costPerFoot.toFixed(2)} ${priceData.currency}`;\r\n }\r\n<\/script>\r\n\r\n<\/body>\r\n<\/html>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f87d753 elementor-widget elementor-widget-text-editor\" data-id=\"f87d753\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-path-to-node=\"5\">At <b data-path-to-node=\"5\" data-index-in-node=\"3\">Believe Industry Company (Beli Rollforming)<\/b>, we know that your time is valuable. You shouldn’t have to manually crunch numbers or dig up density charts every time a new coil arrives. That is why we developed our free, interactive <b data-path-to-node=\"5\" data-index-in-node=\"233\">Metal Coil Calculator<\/b> to do the heavy lifting for you.<\/p><p data-path-to-node=\"5\">Whether you are purchasing raw materials, setting up a roll forming line, or auditing your inventory, accurate metal coil calculations are essential. A slight miscalculation in coil length or weight can lead to production delays, material shortages, or blown budgets.<\/p><p data-path-to-node=\"4\"><span data-path-to-node=\"4,1\"><span class=\"citation-367\">Whether auditing warehouse inventory or feeding a high-speed <\/span><a class=\"ng-star-inserted\" href=\"https:\/\/www.google.com\/search?q=https:\/\/believeindustry.company\/slitting-line\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQjws\"><span class=\"citation-367\">slitting line<\/span><\/a><\/span><span data-path-to-node=\"4,3\">, precision is vital. A slight miscalculation causes severe production delays. To avoid this, our Metal Coil Calculator instantly processes Outside Diameter (OD), Inside Diameter (ID), width, and thickness to give you actionable data.<\/span><\/p><p id=\"p-rc_490c64c17e58846a-97\" data-path-to-node=\"5\"><span data-path-to-node=\"5,1\"><span class=\"citation-366\">Before setting up your <\/span><a class=\"ng-star-inserted\" href=\"https:\/\/believeindustry.company\/roll-forming-equipment\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQkQs\"><span class=\"citation-366\">roll forming equipment<\/span><\/a> <\/span><span data-path-to-node=\"5,4\"><span class=\"citation-365\">, utilize this tool for a <\/span><a class=\"ng-star-inserted\" href=\"https:\/\/believeindustry.company\/roll-forming-machine-line\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQkgs\"><span class=\"citation-365\">comprehensive analysis of roll forming machine<\/span><\/a><span class=\"citation-365\"> setups<\/span><\/span><span data-path-to-node=\"5,6\">. <\/span><span data-path-to-node=\"5,8\"><span class=\"citation-364\">By computing exactly how much material sits on your <\/span><a class=\"ng-star-inserted\" href=\"https:\/\/believeindustry.company\/uncoiler\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQkws\"><span class=\"citation-364\">uncoiler<\/span><\/a><\/span><span data-path-to-node=\"5,10\">, you eliminate scrap. We highly recommend pairing our calculator\u2019s precise outputs with premium machinery from <a class=\"ng-star-inserted\" href=\"https:\/\/belirollforming.com\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQlAs\">Beli Rollforming<\/a> and following <a class=\"ng-star-inserted\" href=\"https:\/\/worldsteel.org\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwj19IfCrK2TAxUAAAAAHQAAAAAQlQs\">World Steel Association<\/a> safety standards.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c6510e elementor-widget elementor-widget-heading\" data-id=\"2c6510e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What Can the Calculator Do?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76dde3f elementor-widget elementor-widget-text-editor\" data-id=\"76dde3f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-path-to-node=\"7\">Our tool is designed to provide instant, precise metrics for the most common metals used in the industry, including Carbon Steel, Stainless Steel, Aluminum, and Copper.<\/p><p data-path-to-node=\"8\">Here is what you can figure out in seconds:<\/p><ul data-path-to-node=\"9\"><li><p data-path-to-node=\"9,0,0\"><b data-path-to-node=\"9,0,0\" data-index-in-node=\"0\">Find Coil Length:<\/b> Input your coil’s weight, width, and thickness to instantly find out how many meters (and feet) of material you have.<\/p><\/li><li><p data-path-to-node=\"9,1,0\"><b data-path-to-node=\"9,1,0\" data-index-in-node=\"0\">Find Coil Weight:<\/b> Only know the dimensions? Input the Outside Diameter (OD), Inside Diameter (ID), width, and thickness to get an accurate weight estimation.<\/p><\/li><li><p data-path-to-node=\"9,2,0\"><b data-path-to-node=\"9,2,0\" data-index-in-node=\"0\">Estimate Material Costs:<\/b> The tool automatically detects your region to provide a baseline cost estimation for your specific material, breaking down the cost per meter and cost per foot.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-485db8e elementor-widget elementor-widget-heading\" data-id=\"485db8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How to Use the Tool<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e840ceb elementor-widget elementor-widget-text-editor\" data-id=\"e840ceb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-path-to-node=\"11\">Using the calculator is simple and requires no software installation.<\/p><p data-path-to-node=\"11\"><b data-path-to-node=\"12,0,0\" data-index-in-node=\"0\">Select Your Material:<\/b> Choose between Steel, Stainless, Aluminum, or Copper from the dropdown menu. This automatically applies the correct material density to the background math.<\/p><ul><li data-path-to-node=\"12,1,0\"><b data-path-to-node=\"12,1,0\" data-index-in-node=\"0\">Choose Your Mode:<\/b> * Select <b data-path-to-node=\"12,1,0\" data-index-in-node=\"27\">Mode 1 (Known Weight)<\/b> if you have a scale reading or shipping manifest and need to know the linear length.<\/li><li data-path-to-node=\"12,1,0\">Select <b data-path-to-node=\"12,1,1,0,0\" data-index-in-node=\"7\">Mode 2 (Known Diameters)<\/b> if the coil is sitting on the floor and you can only measure its physical width, OD, and ID.<\/li><li data-path-to-node=\"12,1,0\"><b data-path-to-node=\"12,2,0\" data-index-in-node=\"0\">Enter Your Dimensions:<\/b> Input the width and thickness in millimeters (mm).<\/li><li data-path-to-node=\"12,1,0\"><b data-path-to-node=\"12,3,0\" data-index-in-node=\"0\">Calculate:<\/b> Hit the blue button. The tool will instantly generate your length, weight, and a baseline cost estimate.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Believe Industry Company (Beli Rollforming) – Metal Coil Calculator Believe Industry Company (Beli Rollforming) \ud83d\udcde +86 18616927760 | \u2709\ufe0f Enquiry@believeindustry.com | \ud83c\udf10 believeindustry.company Metal Coil Calculator Material Carbon SteelStainless SteelAluminumCopper Mode 1: Known Weight Mode 2: Known Diameters Coil Width (mm) Coil Thickness (mm) Coil Weight (kg) External Diameter \/ OD (mm) Internal Diameter \/ […]<\/p>\n","protected":false},"author":2,"featured_media":21944,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_wpcom_ai_launchpad_about_page":false,"_wpcom_ai_launchpad_gallery_page":false,"_wpcom_ai_launchpad_contact_page":false,"_wpcom_ai_launchpad_events_page":false,"_wpcom_ai_launchpad_video_page":false,"_wpcom_ai_launchpad_portfolio_piece":false,"footnotes":"","big_sky_generated":false},"tags":[],"class_list":["post-21105","page","type-page","status-publish","has-post-thumbnail","hentry"],"blocksy_meta":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P9K5n8-5up","jetpack_likes_enabled":false,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/pages\/21105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/comments?post=21105"}],"version-history":[{"count":24,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/pages\/21105\/revisions"}],"predecessor-version":[{"id":21946,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/pages\/21105\/revisions\/21946"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/media\/21944"}],"wp:attachment":[{"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/media?parent=21105"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/believeindustry.company\/ms\/wp-json\/wp\/v2\/tags?post=21105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}