{"id":10303,"date":"2026-09-01T23:46:47","date_gmt":"2026-09-01T23:46:47","guid":{"rendered":"https:\/\/theycraft.com\/?page_id=10303"},"modified":"2026-09-02T02:21:42","modified_gmt":"2026-09-02T02:21:42","slug":"pillow-cushion-cover-calculator","status":"publish","type":"page","link":"https:\/\/theycraft.com\/fr\/sewing-free-tools\/pillow-cushion-cover-calculator\/","title":{"rendered":"Pillow &#038; Cushion Cover Calculator"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"10303\" class=\"elementor elementor-10303\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3d49296 e-flex e-con-boxed e-con e-parent\" data-id=\"3d49296\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-830d082 elementor-widget elementor-widget-html\" data-id=\"830d082\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style>\r\n  .tc-suite-root {\r\n    width: 100%;\r\n    margin: 0 auto 32px auto;\r\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, sans-serif;\r\n    color: #1e293b;\r\n    box-sizing: border-box;\r\n    line-height: 1.5;\r\n  }\r\n  .tc-suite-root * { box-sizing: border-box; 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padding: 13px 20px; }\r\n  }\r\n<\/style>\r\n\r\n<div class=\"tc-suite-root\">\r\n  <div class=\"tc-hero-card\">\r\n    <div class=\"tc-hero-content\">\r\n      <div class=\"tc-badge-pill\">\r\n        <span class=\"tc-badge-dot\"><\/span>\r\n        HOME DECOR TOOL\r\n      <\/div>\r\n      <h1 class=\"tc-hero-title\">Pillow &amp; Cushion Cover Calculator<\/h1>\r\n      <p class=\"tc-hero-desc\">\r\n        Calculate exact fabric cuts for envelope-back and zippered cushion covers with built-in negative ease for plump, professional corners.\r\n      <\/p>\r\n      <a href=\"#inpInsertSize\" class=\"tc-cta-btn\">Calculate Cuts<\/a>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"tc-tool-inner\">\r\n    <div class=\"tc-card\">\r\n      <div class=\"tc-toggle\">\r\n        <button type=\"button\" class=\"tc-btn active\" id=\"btnPillowIn\">Inches<\/button>\r\n        <button type=\"button\" class=\"tc-btn\" id=\"btnPillowCm\">Centimeters<\/button>\r\n      <\/div>\r\n\r\n      <div class=\"tc-field\">\r\n        <label for=\"selCoverStyle\">Back Closure Style<\/label>\r\n        <select id=\"selCoverStyle\">\r\n          <option value=\"envelope\" selected>Envelope Closure (No zipper, overlapping back flaps)<\/option>\r\n          <option value=\"zipper\">Zipper Closure (Clean hidden zipper)<\/option>\r\n        <\/select>\r\n      <\/div>\r\n\r\n      <div class=\"tc-field\">\r\n        <label for=\"inpInsertSize\" id=\"lblInsertSize\">Pillow Insert Size (inches - e.g. 18 for 18x18)<\/label>\r\n        <input type=\"number\" id=\"inpInsertSize\" value=\"18\" min=\"8\" step=\"1\" \/>\r\n      <\/div>\r\n\r\n      <div class=\"tc-results\">\r\n        <div class=\"tc-row\">\r\n          <span>Front Panel Cut Size:<\/span>\r\n          <span><strong id=\"outFrontCut\">18.0 \u00d7 18.0<\/strong> <span class=\"unitPillow\">in<\/span><\/span>\r\n        <\/div>\r\n        <div class=\"tc-row\" id=\"rowBack1\">\r\n          <span>Back Overlap Panels (Cut 2):<\/span>\r\n          <span><strong id=\"outBackOverlap\">18.0 \u00d7 13.0<\/strong> <span class=\"unitPillow\">in<\/span><\/span>\r\n        <\/div>\r\n        <div class=\"tc-row\" id=\"rowBackZip\" style=\"display:none;\">\r\n          <span>Back Panel (Cut 1):<\/span>\r\n          <span><strong id=\"outBackZip\">18.0 \u00d7 18.0<\/strong> <span class=\"unitPillow\">in<\/span><\/span>\r\n        <\/div>\r\n\r\n        <svg id=\"tcPillowSvg\" viewbox=\"0 0 320 120\">\r\n          <rect x=\"30\" y=\"20\" width=\"80\" height=\"80\" rx=\"4\" fill=\"#ecfdf5\" stroke=\"#059669\" stroke-width=\"2\"\/>\r\n          <text x=\"70\" y=\"65\" font-size=\"11\" fill=\"#065f46\" font-weight=\"600\" text-anchor=\"middle\">Front<\/text>\r\n          \r\n          <rect x=\"150\" y=\"20\" width=\"55\" height=\"80\" rx=\"3\" fill=\"#f8fafc\" stroke=\"#94a3b8\" stroke-dasharray=\"2 2\"\/>\r\n          <rect x=\"180\" y=\"20\" width=\"55\" height=\"80\" rx=\"3\" fill=\"#f8fafc\" stroke=\"#059669\" stroke-width=\"1.5\"\/>\r\n          <text x=\"192\" y=\"65\" font-size=\"11\" fill=\"#0f172a\" font-weight=\"600\" text-anchor=\"middle\">Envelope Overlap<\/text>\r\n        <\/svg>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"tc-card\">\r\n      <h3>Cushion Field Manual<\/h3>\r\n      <div class=\"tc-h4\">The 1-Inch Negative Ease Secret<\/div>\r\n      <ul class=\"tc-list\">\r\n        <li><strong>Why Cut Exactly to Insert Size?<\/strong> When you add 1\/2\" seam allowances around the cut panel, the finished cover sews up 1\" smaller than your insert. This tension fills out the corners and eliminates droopy fabric wrinkles.<\/li>\r\n        <li><strong>Envelope Back Overlap:<\/strong> The two back flaps overlap by 4 inches to prevent the pillow insert from peeking out during use.<\/li>\r\n      <\/ul>\r\n      <div class=\"tc-h4\">The Math Formula<\/div>\r\n      <div class=\"tc-formula\">\r\n        \u2022 Front Cut = <span>Insert Dimension (sews 1\" smaller)<\/span><br>\r\n        \u2022 Envelope Back Pieces = <span>Width \u00d7 ((Height \u00f7 2) + 4\" overlap)<\/span>\r\n      <\/div>\r\n    <\/div>\r\n  <\/div>\r\n<\/div>\r\n\r\n<script>\r\n(function() {\r\n  var unit = 'in';\r\n\r\n  function initPillow() {\r\n    var bIn = document.getElementById('btnPillowIn');\r\n    var bCm = document.getElementById('btnPillowCm');\r\n    var selStyle = document.getElementById('selCoverStyle');\r\n    var inpSize = document.getElementById('inpInsertSize');\r\n    var lblSize = document.getElementById('lblInsertSize');\r\n\r\n    var outFront = document.getElementById('outFrontCut');\r\n    var outBackOver = document.getElementById('outBackOverlap');\r\n    var outBackZip = document.getElementById('outBackZip');\r\n    var rowBack1 = document.getElementById('rowBack1');\r\n    var rowBackZip = document.getElementById('rowBackZip');\r\n    var unitSpans = document.querySelectorAll('.unitPillow');\r\n\r\n    if (!bIn || !bCm || !inpSize) return;\r\n\r\n    function runMath() {\r\n      var s = parseFloat(inpSize.value);\r\n      var style = selStyle.value;\r\n\r\n      if (isNaN(s) || s <= 0) s = (unit === 'cm') ? 45 : 18;\r\n\r\n      var overlapAllowance = (unit === 'cm') ? 10 : 4;\r\n      var backOverlapHeight = (s \/ 2) + overlapAllowance;\r\n\r\n      outFront.textContent = s.toFixed(1) + ' \u00d7 ' + s.toFixed(1);\r\n      outBackOver.textContent = s.toFixed(1) + ' \u00d7 ' + backOverlapHeight.toFixed(1);\r\n      outBackZip.textContent = s.toFixed(1) + ' \u00d7 ' + s.toFixed(1);\r\n\r\n      if (style === 'envelope') {\r\n        rowBack1.style.display = 'flex';\r\n        rowBackZip.style.display = 'none';\r\n      } else {\r\n        rowBack1.style.display = 'none';\r\n        rowBackZip.style.display = 'flex';\r\n      }\r\n    }\r\n\r\n    function switchU(t) {\r\n      if (unit === t) return;\r\n      unit = t;\r\n      var s = parseFloat(inpSize.value);\r\n\r\n      if (unit === 'cm') {\r\n        bCm.className = 'tc-btn active';\r\n        bIn.className = 'tc-btn';\r\n        lblSize.textContent = 'Pillow Insert Size (cm - e.g. 45 for 45x45)';\r\n        unitSpans.forEach(function(el) { el.textContent = 'cm'; });\r\n        if (!isNaN(s)) inpSize.value = (s * 2.54).toFixed(0);\r\n      } else {\r\n        bIn.className = 'tc-btn active';\r\n        bCm.className = 'tc-btn';\r\n        lblSize.textContent = 'Pillow Insert Size (inches - e.g. 18 for 18x18)';\r\n        unitSpans.forEach(function(el) { el.textContent = 'in'; });\r\n        if (!isNaN(s)) inpSize.value = (s \/ 2.54).toFixed(0);\r\n      }\r\n      runMath();\r\n    }\r\n\r\n    bIn.addEventListener('click', function() { switchU('in'); });\r\n    bCm.addEventListener('click', function() { switchU('cm'); });\r\n    selStyle.addEventListener('change', runMath);\r\n    inpSize.addEventListener('input', runMath);\r\n\r\n    runMath();\r\n  }\r\n\r\n  if (document.readyState === 'loading') {\r\n    document.addEventListener('DOMContentLoaded', initPillow);\r\n  } else {\r\n    initPillow();\r\n  }\r\n})();\r\n<\/script>\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>","protected":false},"excerpt":{"rendered":"<p>HOME DECOR TOOL Pillow &amp; Cushion Cover Calculator Calculate exact fabric cuts for envelope-back and zippered cushion covers with built-in negative ease for plump, professional corners. Calculate Cuts Inches Centimeters Back Closure Style Envelope Closure (No zipper, overlapping back flaps)Zipper Closure (Clean hidden zipper) Pillow Insert Size (inches &#8211; e.g. 18 for 18&#215;18) Front Panel [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":10364,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","footnotes":""},"class_list":["post-10303","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/theycraft.com\/fr\/wp-json\/wp\/v2\/pages\/10303","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/theycraft.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/theycraft.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/theycraft.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/theycraft.com\/fr\/wp-json\/wp\/v2\/comments?post=10303"}],"version-history":[{"count":7,"href":"https:\/\/theycraft.com\/fr\/wp-json\/wp\/v2\/pages\/10303\/revisions"}],"predecessor-version":[{"id":10310,"href":"https:\/\/theycraft.com\/fr\/wp-json\/wp\/v2\/pages\/10303\/revisions\/10310"}],"up":[{"embeddable":true,"href":"https:\/\/theycraft.com\/fr\/wp-json\/wp\/v2\/pages\/10364"}],"wp:attachment":[{"href":"https:\/\/theycraft.com\/fr\/wp-json\/wp\/v2\/media?parent=10303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}