{"id":100150,"date":"2026-02-15T20:21:10","date_gmt":"2026-02-15T20:21:10","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100150"},"modified":"2026-04-05T15:40:58","modified_gmt":"2026-04-05T15:40:58","slug":"mass-weight-converter","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/nb\/calculators\/mass-weight-converter\/","title":{"rendered":"Masse- og vektomregner: kg, lb, oz, tonn | Vibromera"},"content":{"rendered":"\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Mass & Weight Converter\",\"description\":\"Free online mass and weight unit converter with all major metric and imperial 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24px;border-top:1px solid var(--vc-border-light)}\n.vc-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13px}.vc-table th,.vc-table td{padding:10px 12px;border:1px solid var(--vc-border-light);text-align:left}.vc-table th{background:var(--vc-surface-alt);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--vc-ink-secondary)}.vc-table tr:nth-child(even){background:var(--vc-surface-alt)}\n.vc-related{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.vc-related-link{display:inline-block;padding:8px 16px;font-family:var(--vc-font);font-size:13px;font-weight:600;background:var(--vc-surface-alt);color:var(--vc-ink-secondary);border:1px solid var(--vc-border);border-radius:var(--vc-radius);text-decoration:none;transition:all .15s}.vc-related-link:hover{border-color:var(--vc-accent);color:var(--vc-accent);background:var(--vc-accent-light)}\n.vc-faq-list{display:flex;flex-direction:column;gap:8px;margin-top:20px}.vc-faq-item{border:1px solid var(--vc-border-light);border-radius:6px;overflow:hidden}.vc-faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border:none;background:var(--vc-surface-alt);cursor:pointer;font-family:var(--vc-font);font-size:15px;font-weight:600;color:var(--vc-ink);text-align:left}.vc-faq-q:hover{background:#ede9e3}.vc-faq-chevron{width:16px;height:16px;color:var(--vc-ink-muted);flex-shrink:0;transition:transform .25s}.vc-faq-item.vc-open .vc-faq-chevron{transform:rotate(180deg)}.vc-faq-a{max-height:0;overflow:hidden;transition:max-height .35s}.vc-faq-item.vc-open .vc-faq-a{max-height:1200px}.vc-faq-a-inner{padding:14px 16px;border-top:1px solid var(--vc-border-light);font-size:14px;color:var(--vc-ink-secondary)}.vc-faq-a-inner p{margin:0 0 8px}.vc-faq-a-inner p:last-child{margin-bottom:0}\n.vc-promo{margin-top:24px;padding:20px;background:linear-gradient(135deg,var(--vc-accent-light),var(--vc-surface));border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);display:flex;align-items:center;gap:16px}.vc-promo-text{flex:1;font-size:14px;color:var(--vc-ink-secondary)}.vc-promo-text strong{color:var(--vc-ink)}.vc-promo-link{padding:8px 20px;font-size:13px;font-weight:700;color:#fff;background:var(--vc-accent);border-radius:var(--vc-radius);text-decoration:none;white-space:nowrap;transition:background .15s}.vc-promo-link:hover{background:var(--vc-accent-hover)}\n.vc-footer{text-align:center;padding:32px 16px;font-size:13px;color:var(--vc-ink-muted)}.vc-footer a{color:var(--vc-accent);text-decoration:none}.vc-footer a:hover{text-decoration:underline}.vc-footer-links{margin-top:8px;font-size:12px}.vc-footer-links a{margin:0 8px}\n@media print{.vc-section-body{max-height:none!important}.vc-results{max-height:none!important;padding:24px!important}.vc-copy-btn,.vc-section-chevron,.vc-promo{display:none!important}}\n<\/style>\n\n<div class=\"vc-calculator\">\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool<\/p>\n    <h1 class=\"vc-header-title\">Mass &amp; Weight Converter<\/h1>\n    <p class=\"vc-header-subtitle\">Convert between all major mass and weight units instantly. Metric and imperial units shown simultaneously.<\/p>\n    <div class=\"vc-badges\"><span class=\"vc-badge\">kg<\/span><span class=\"vc-badge\">lb<\/span><span class=\"vc-badge\">oz<\/span><span class=\"vc-badge\">tonne<\/span><span class=\"vc-badge\">stone<\/span><span class=\"vc-badge\">grain<\/span><\/div>\n<\/header>\n\n<div class=\"vc-card\">\n    <form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\">\n        <div class=\"vc-form-grid\">\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-value\">Value<\/label><input class=\"vc-input\" type=\"number\" id=\"vc-value\" inputmode=\"decimal\" step=\"any\" value=\"100\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-unit\">Unit<\/label>\n                <select class=\"vc-select\" id=\"vc-unit\">\n                    <option value=\"kg\" selected>Kilogram (kg)<\/option>\n                    <option value=\"g\">Gram (g)<\/option>\n                    <option value=\"mg\">Milligram (mg)<\/option>\n                    <option value=\"tonne\">Tonne (metric ton)<\/option>\n                    <option value=\"lb\">Pound (lb)<\/option>\n                    <option value=\"oz\">Ounce (oz)<\/option>\n                    <option value=\"stone\">Stone (st)<\/option>\n                    <option value=\"short_ton\">Short Ton (US, 2000 lb)<\/option>\n                    <option value=\"long_ton\">Long Ton (UK, 2240 lb)<\/option>\n                    <option value=\"grain\">Grain (gr)<\/option>\n                <\/select>\n            <\/div>\n        <\/div>\n    <\/form>\n\n    <div class=\"vc-results\" id=\"vc-results\">\n        <div class=\"vc-results-head\">\n            <h2 class=\"vc-results-title\">All Units<\/h2>\n            <button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\"><svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy<\/button>\n        <\/div>\n        <div class=\"vc-result-grid\" id=\"vc-result-grid\"><\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-section vc-open\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udcd8<\/span><span class=\"vc-section-title\">Reference Table<\/span><\/span><svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner\">\n            <table class=\"vc-table\"><thead><tr><th>Unit<\/th><th>= Kilograms<\/th><th>Notes<\/th><\/tr><\/thead>\n            <tbody>\n                <tr><td>1 mg<\/td><td>0.000001<\/td><td>Milligram<\/td><\/tr>\n                <tr><td>1 grain<\/td><td>0.00006479891<\/td><td>Troy\/Avoirdupois grain<\/td><\/tr>\n                <tr><td>1 g<\/td><td>0.001<\/td><td>Gram<\/td><\/tr>\n                <tr><td>1 oz<\/td><td>0.028349523<\/td><td>Avoirdupois ounce<\/td><\/tr>\n                <tr><td>1 lb<\/td><td>0.45359237<\/td><td>Avoirdupois pound<\/td><\/tr>\n                <tr><td>1 kg<\/td><td>1<\/td><td>SI base unit<\/td><\/tr>\n                <tr><td>1 stone<\/td><td>6.35029318<\/td><td>14 pounds<\/td><\/tr>\n                <tr><td>1 short ton<\/td><td>907.18474<\/td><td>US ton (2000 lb)<\/td><\/tr>\n                <tr><td>1 long ton<\/td><td>1016.0469<\/td><td>UK\/Imperial ton (2240 lb)<\/td><\/tr>\n                <tr><td>1 tonne<\/td><td>1000<\/td><td>Metric ton<\/td><\/tr>\n            <\/tbody><\/table>\n\n            <h3>Common Engineering Mass Conversions<\/h3>\n            <table class=\"vc-table\">\n                <thead><tr><th>From \u2192 To<\/th><th>Multiply by<\/th><th>Example<\/th><\/tr><\/thead>\n                <tbody>\n                    <tr><td>kg \u2192 lb<\/td><td>2.20462<\/td><td>100 kg = 220.46 lb<\/td><\/tr>\n                    <tr><td>lb \u2192 kg<\/td><td>0.45359<\/td><td>100 lb = 45.36 kg<\/td><\/tr>\n                    <tr><td>oz \u2192 g<\/td><td>28.3495<\/td><td>1 oz = 28.35 g<\/td><\/tr>\n                    <tr><td>g \u2192 oz<\/td><td>0.03527<\/td><td>100 g = 3.53 oz<\/td><\/tr>\n                    <tr><td>tonne \u2192 short ton<\/td><td>1.10231<\/td><td>1 t = 1.102 short tons<\/td><\/tr>\n                    <tr><td>short ton \u2192 tonne<\/td><td>0.90718<\/td><td>1 ST = 0.907 t<\/td><\/tr>\n                    <tr><td>stone \u2192 kg<\/td><td>6.35029<\/td><td>10 stone = 63.5 kg<\/td><\/tr>\n                <\/tbody>\n            <\/table>\n\n            <h3>Handy Memorization Tips<\/h3>\n            <ul>\n                <li>1 kg \u2248 2.2 lb (for quick estimates)<\/li>\n                <li>1 lb \u2248 454 g<\/li>\n                <li>1 ounce \u2248 28.35 g<\/li>\n                <li>1 stone = 14 lb = 6.35 kg (used in UK for body weight)<\/li>\n                <li>1 tonne = 1000 kg \u2248 2205 lb<\/li>\n                <li>1 short ton (US) = 2000 lb \u2248 907 kg<\/li>\n                <li>1 long ton (UK) = 2240 lb \u2248 1016 kg<\/li>\n                <li>1 grain \u2248 64.8 mg (used in ballistics and pharmacy)<\/li>\n            <\/ul>\n\n            <h3>Mass vs Weight<\/h3>\n            <p>In everyday use, &#8220;weight&#8221; and &#8220;mass&#8221; are used interchangeably, but they differ:<\/p>\n            <ul>\n                <li><strong>Mass<\/strong> (kg, lb-mass) is the amount of matter \u2014 constant everywhere<\/li>\n                <li><strong>Weight<\/strong> (N, lbf) is the gravitational force \u2014 varies with location<\/li>\n                <li>On Earth&#8217;s surface: Weight (N) = Mass (kg) \u00d7 9.81 m\/s\u00b2<\/li>\n                <li>A 100 kg mass weighs 981 N on Earth but only 163 N on the Moon<\/li>\n            <\/ul>\n\n            <h3>Application-Specific Units<\/h3>\n            <ul>\n                <li><strong>Balancing:<\/strong> Unbalance measured in g\u00b7mm (grams \u00d7 millimeters) or oz\u00b7in (ounces \u00d7 inches)<\/li>\n                <li><strong>Pharmacy:<\/strong> Grains (1 gr = 64.8 mg), drams, scruples<\/li>\n                <li><strong>Precious metals:<\/strong> Troy ounce (31.103 g) \u2260 Avoirdupois ounce (28.350 g)<\/li>\n                <li><strong>Gemstones:<\/strong> Carat (1 ct = 0.2 g)<\/li>\n            <\/ul>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-section\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\n        <span class=\"vc-section-toggle-text\">\n            <span class=\"vc-section-icon\">\u2696\ufe0f<\/span>\n            <span class=\"vc-section-title\">Common Object Masses (Reference)<\/span>\n        <\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner\">\n            <p style=\"font-size:14px;color:var(--vc-ink-secondary);margin:16px 0 10px;\">Useful mass references for sanity-checking calculations and estimates.<\/p>\n            <table class=\"vc-table\">\n                <thead><tr><th>Object<\/th><th>Mass (kg)<\/th><th>Mass (lb)<\/th><\/tr><\/thead>\n                <tbody>\n                    <tr><td>M10 hex bolt (50mm)<\/td><td>0.035<\/td><td>0.077<\/td><\/tr>\n                    <tr><td>Standard brick<\/td><td>3.1<\/td><td>6.8<\/td><\/tr>\n                    <tr><td>Car wheel (steel, 16&#8243;)<\/td><td>9<\/td><td>20<\/td><\/tr>\n                    <tr><td>Electric motor (1.5 kW, 4-pole)<\/td><td>15<\/td><td>33<\/td><\/tr>\n                    <tr><td>Electric motor (7.5 kW, 4-pole)<\/td><td>42<\/td><td>93<\/td><\/tr>\n                    <tr><td>Pallet of cement (40 bags)<\/td><td>1000<\/td><td>2205<\/td><\/tr>\n                    <tr><td>Small car<\/td><td>1200<\/td><td>2646<\/td><\/tr>\n                    <tr><td>Empty 20ft shipping container<\/td><td>2300<\/td><td>5071<\/td><\/tr>\n                    <tr><td>Loaded 20ft shipping container (max)<\/td><td>28200<\/td><td>62170<\/td><\/tr>\n                <\/tbody>\n            <\/table>\n\n            <h3>Steel Weight Quick Estimates<\/h3>\n            <table class=\"vc-table\">\n                <thead><tr><th>Shape<\/th><th>Formula (kg)<\/th><th>Example<\/th><\/tr><\/thead>\n                <tbody>\n                    <tr><td>Steel plate (mm, m\u00b2)<\/td><td>thickness \u00d7 area \u00d7 7.85<\/td><td>10mm \u00d7 1m\u00b2 = 78.5 kg<\/td><\/tr>\n                    <tr><td>Round bar (mm, m)<\/td><td>d\u00b2 \u00d7 length \u00d7 0.00617<\/td><td>\u00f850 \u00d7 1m = 15.4 kg<\/td><\/tr>\n                    <tr><td>Pipe (mm, m)<\/td><td>(OD\u00b2 \u2212 ID\u00b2) \u00d7 L \u00d7 0.00617<\/td><td>\u00f8114.3\u00d73.6mm \u00d7 1m = 9.8 kg<\/td><\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-section\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\n        <span class=\"vc-section-toggle-text\">\n            <span class=\"vc-section-icon\">\u2753<\/span>\n            <span class=\"vc-section-title\">FAQ<\/span>\n        <\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner\">\n            <div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-section\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\n        <span class=\"vc-section-toggle-text\">\n            <span class=\"vc-section-icon\">\ud83d\udd17<\/span>\n            <span class=\"vc-section-title\">Related Converters<\/span>\n        <\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner\">\n            <div class=\"vc-related\">\n                <a class=\"vc-related-link\" href=\"\/calculators\/length-unit-converter\/\">Length Converter<\/a>\n                <a class=\"vc-related-link\" href=\"\/calculators\/force-unit-converter\/\">Force Converter<\/a>\n                <a class=\"vc-related-link\" href=\"\/calculators\/rpm-to-rads-converter\/\">RPM Converter<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-promo\"><div class=\"vc-promo-text\"><strong>Vibromera \u2014 Portable Balancing &amp; Vibration Analysis<\/strong><br>Professional engineering 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A long ton (UK\/Imperial ton) = 2240 lb = 1016.05 kg. The metric tonne = 1000 kg = 2204.62 lb. The long ton is closest to the metric tonne. In international shipping and engineering, the metric tonne is standard.<\/p>'},\n        {q:'Is a Troy ounce the same as a regular ounce?',a:'<p>No. The standard (avoirdupois) ounce = 28.3495 g, used for most everyday weighing. The Troy ounce = 31.1035 g, used for precious metals (gold, silver, platinum). A Troy ounce is about 10% heavier than a regular ounce. Troy pounds also differ: 1 Troy lb = 12 Troy oz = 373.24 g.<\/p>'},\n        {q:'What unit is used for vibration balancing?',a:'<p>Unbalance is measured in mass \u00d7 distance units: g\u00b7mm (grams \u00d7 millimeters) in metric, or oz\u00b7in (ounces \u00d7 inches) in imperial. Conversion: 1 oz\u00b7in = 720 g\u00b7mm. ISO 1940 specifies permissible residual unbalance in g\u00b7mm\/kg.<\/p>'},\n        {q:'How do I convert unbalance between g\u00b7mm and oz\u00b7in?',a:'<p>1 oz\u00b7in = 1 avoirdupois ounce \u00d7 1 inch = 28.3495 g \u00d7 25.4 mm = 720.078 g\u00b7mm. So divide g\u00b7mm by 720 to get oz\u00b7in, or multiply oz\u00b7in by 720 to get g\u00b7mm.<\/p>'},\n        {q:'What does a grain measure?',a:'<p>A grain (gr) = 64.79891 mg = 0.0648 g. It is the same in Troy, avoirdupois, and apothecary systems. Used primarily in ballistics (bullet weight), pharmacy (drug dosage), and sometimes in moisture content measurement. 1 lb = 7000 grains.<\/p>'}\n    ];\n    var fl=$('vc-faq-list');\n    faqData.forEach(function(f){\n        fl.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>'+f.q+'<\/span><svg class=\"vc-faq-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">'+f.a+'<\/div><\/div><\/div>';\n    });\n    fl.addEventListener('click',function(e){\n        var b=e.target.closest('.vc-faq-q');\n        if(!b)return;\n        b.closest('.vc-faq-item').classList.toggle('vc-open');\n    });\n\n    function init(){calculate()}\n    if(document.readyState==='loading'){document.addEventListener('DOMContentLoaded',init)}else{init()}\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Gratis online masse- og vektkonverterer. Konverter mellom kg, g, mg, tonn, lb, oz, stone, short tonn, long tonn og grain. Alle enheter vises samtidig.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100150","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100150\/revisions"}],"predecessor-version":[{"id":100943,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100150\/revisions\/100943"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=100150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=100150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=100150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}