{"id":15277,"date":"2025-07-29T10:42:04","date_gmt":"2025-07-29T15:42:04","guid":{"rendered":"https:\/\/blog.misumiusa.com\/?page_id=15277"},"modified":"2025-07-29T10:42:05","modified_gmt":"2025-07-29T15:42:05","slug":"inches-to-decimal-conversion-chart","status":"publish","type":"page","link":"https:\/\/us.misumi-ec.com\/blog\/inches-to-decimal-conversion-chart\/","title":{"rendered":"Inches to Decimal Conversion Chart"},"content":{"rendered":"\n

Converting decimals to inches, and inches to decimals is extremely important in many areas of working within manufacturing, and with industrial machine parts. Knowing something as simple as a 1\/8 inch size to decimal, or 0.5938 decimal in inches can have important effects on the outcome of a project or a fix if even slightly off. So, we’ve added this table, and a quick calculator to give you a fast and easy reference.<\/p>\n\n\n\n

Fractional Inches to Decimal Inches Conversion Table<\/h2>\n\n\n\n\n \n Fractional to Decimal Inches Conversion Chart<\/title>\n <style>\n .fraction-conversion-table {\n font-family: Arial, sans-serif;\n }\n .fraction-conversion-table .container {\n max-width: 800px;\n margin: 0 auto;\n background: white;\n padding: 20px;\n border-radius: 8px;\n box-shadow: 0 2px 10px rgba(0,0,0,0.1);\n }\n .fraction-conversion-table table {\n width: 100%;\n border-collapse: collapse;\n margin-bottom: 20px;\n }\n .fraction-conversion-table th {\n background-color: #4CAF50;\n color: white;\n padding: 12px;\n text-align: center;\n font-weight: bold;\n }\n .fraction-conversion-table td {\n padding: 8px 12px;\n text-align: center;\n border: 1px solid #ddd;\n }\n .fraction-conversion-table .section-header {\n background-color: #2196F3;\n color: white;\n font-weight: bold;\n text-align: center;\n padding: 10px;\n }\n .fraction-conversion-table .fraction-col {\n font-weight: bold;\n width: 25%;\n }\n .fraction-conversion-table .decimal-col {\n width: 35%;\n font-family: monospace;\n }\n .fraction-conversion-table .mm-col {\n width: 40%;\n font-family: monospace;\n }\n .fraction-conversion-table tr:nth-child(even) {\n background-color: #f9f9f9;\n }\n .fraction-conversion-table tr:hover {\n background-color: #e3f2fd;\n }\n .fraction-conversion-table .note {\n background-color: #fff3cd;\n border: 1px solid #ffeaa7;\n padding: 15px;\n border-radius: 5px;\n margin-top: 20px;\n font-size: 14px;\n }\n <\/style>\n\n\n <div class=\"fraction-conversion-table\">\n <div class=\"container\">\n\n \n <table id=\"conversionTable\">\n <thead>\n <tr>\n <th>Fraction (inches)<\/th>\n <th>Decimal (inches)<\/th>\n <th>Millimeters (mm)<\/th>\n <\/tr>\n <\/thead>\n <tbody id=\"tableBody\">\n <tr>\n <td class=\"fraction-col\">1<\/td>\n <td class=\"decimal-col\">1.0000<\/td>\n <td class=\"mm-col\">25.4000<\/td>\n <\/tr>\n <tr><td colspan=\"3\" class=\"section-header\">Halves<\/td><\/tr>\n <tr>\n <td class=\"fraction-col\">1\/2<\/td>\n <td class=\"decimal-col\">0.5000<\/td>\n <td class=\"mm-col\">12.7000<\/td>\n <\/tr>\n <tr><td colspan=\"3\" class=\"section-header\">Quarters<\/td><\/tr>\n <tr>\n <td class=\"fraction-col\">1\/4<\/td>\n <td class=\"decimal-col\">0.2500<\/td>\n <td class=\"mm-col\">6.3500<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">3\/4<\/td>\n <td class=\"decimal-col\">0.7500<\/td>\n <td class=\"mm-col\">19.0500<\/td>\n <\/tr>\n <tr><td colspan=\"3\" class=\"section-header\">Eighths<\/td><\/tr>\n <tr>\n <td class=\"fraction-col\">1\/8<\/td>\n <td class=\"decimal-col\">0.1250<\/td>\n <td class=\"mm-col\">3.1750<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">3\/8<\/td>\n <td class=\"decimal-col\">0.3750<\/td>\n <td class=\"mm-col\">9.5250<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">5\/8<\/td>\n <td class=\"decimal-col\">0.6250<\/td>\n <td class=\"mm-col\">15.8750<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">7\/8<\/td>\n <td class=\"decimal-col\">0.8750<\/td>\n <td class=\"mm-col\">22.2250<\/td>\n <\/tr>\n <tr><td colspan=\"3\" class=\"section-header\">Sixteenths<\/td><\/tr>\n <tr>\n <td class=\"fraction-col\">1\/16<\/td>\n <td class=\"decimal-col\">0.0625<\/td>\n <td class=\"mm-col\">1.5875<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">3\/16<\/td>\n <td class=\"decimal-col\">0.1875<\/td>\n <td class=\"mm-col\">4.7625<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">5\/16<\/td>\n <td class=\"decimal-col\">0.3125<\/td>\n <td class=\"mm-col\">7.9375<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">7\/16<\/td>\n <td class=\"decimal-col\">0.4375<\/td>\n <td class=\"mm-col\">11.1125<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">9\/16<\/td>\n <td class=\"decimal-col\">0.5625<\/td>\n <td class=\"mm-col\">14.2875<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">11\/16<\/td>\n <td class=\"decimal-col\">0.6875<\/td>\n <td class=\"mm-col\">17.4625<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">13\/16<\/td>\n <td class=\"decimal-col\">0.8125<\/td>\n <td class=\"mm-col\">20.6375<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">15\/16<\/td>\n <td class=\"decimal-col\">0.9375<\/td>\n <td class=\"mm-col\">23.8125<\/td>\n <\/tr>\n <tr><td colspan=\"3\" class=\"section-header\">Thirty-Seconds<\/td><\/tr>\n <tr>\n <td class=\"fraction-col\">1\/32<\/td>\n <td class=\"decimal-col\">0.0313<\/td>\n <td class=\"mm-col\">0.7938<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">3\/32<\/td>\n <td class=\"decimal-col\">0.0938<\/td>\n <td class=\"mm-col\">2.3813<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">5\/32<\/td>\n <td class=\"decimal-col\">0.1563<\/td>\n <td class=\"mm-col\">3.9688<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">7\/32<\/td>\n <td class=\"decimal-col\">0.2188<\/td>\n <td class=\"mm-col\">5.5563<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">9\/32<\/td>\n <td class=\"decimal-col\">0.2813<\/td>\n <td class=\"mm-col\">7.1438<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">11\/32<\/td>\n <td class=\"decimal-col\">0.3438<\/td>\n <td class=\"mm-col\">8.7313<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">13\/32<\/td>\n <td class=\"decimal-col\">0.4063<\/td>\n <td class=\"mm-col\">10.3188<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">15\/32<\/td>\n <td class=\"decimal-col\">0.4688<\/td>\n <td class=\"mm-col\">11.9063<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">17\/32<\/td>\n <td class=\"decimal-col\">0.5313<\/td>\n <td class=\"mm-col\">13.4938<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">19\/32<\/td>\n <td class=\"decimal-col\">0.5938<\/td>\n <td class=\"mm-col\">15.0813<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">21\/32<\/td>\n <td class=\"decimal-col\">0.6563<\/td>\n <td class=\"mm-col\">16.6688<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">23\/32<\/td>\n <td class=\"decimal-col\">0.7188<\/td>\n <td class=\"mm-col\">18.2563<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">25\/32<\/td>\n <td class=\"decimal-col\">0.7813<\/td>\n <td class=\"mm-col\">19.8438<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">27\/32<\/td>\n <td class=\"decimal-col\">0.8438<\/td>\n <td class=\"mm-col\">21.4313<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">29\/32<\/td>\n <td class=\"decimal-col\">0.9063<\/td>\n <td class=\"mm-col\">23.0188<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">31\/32<\/td>\n <td class=\"decimal-col\">0.9688<\/td>\n <td class=\"mm-col\">24.6063<\/td>\n <\/tr>\n <tr><td colspan=\"3\" class=\"section-header\">Sixty-Fourths<\/td><\/tr>\n <tr>\n <td class=\"fraction-col\">1\/64<\/td>\n <td class=\"decimal-col\">0.0156<\/td>\n <td class=\"mm-col\">0.3969<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">3\/64<\/td>\n <td class=\"decimal-col\">0.0469<\/td>\n <td class=\"mm-col\">1.1906<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">5\/64<\/td>\n <td class=\"decimal-col\">0.0781<\/td>\n <td class=\"mm-col\">1.9844<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">7\/64<\/td>\n <td class=\"decimal-col\">0.1094<\/td>\n <td class=\"mm-col\">2.7781<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">9\/64<\/td>\n <td class=\"decimal-col\">0.1406<\/td>\n <td class=\"mm-col\">3.5719<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">11\/64<\/td>\n <td class=\"decimal-col\">0.1719<\/td>\n <td class=\"mm-col\">4.3656<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">13\/64<\/td>\n <td class=\"decimal-col\">0.2031<\/td>\n <td class=\"mm-col\">5.1594<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">15\/64<\/td>\n <td class=\"decimal-col\">0.2344<\/td>\n <td class=\"mm-col\">5.9531<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">17\/64<\/td>\n <td class=\"decimal-col\">0.2656<\/td>\n <td class=\"mm-col\">6.7469<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">19\/64<\/td>\n <td class=\"decimal-col\">0.2969<\/td>\n <td class=\"mm-col\">7.5406<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">21\/64<\/td>\n <td class=\"decimal-col\">0.3281<\/td>\n <td class=\"mm-col\">8.3344<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">23\/64<\/td>\n <td class=\"decimal-col\">0.3594<\/td>\n <td class=\"mm-col\">9.1281<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">25\/64<\/td>\n <td class=\"decimal-col\">0.3906<\/td>\n <td class=\"mm-col\">9.9219<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">27\/64<\/td>\n <td class=\"decimal-col\">0.4219<\/td>\n <td class=\"mm-col\">10.7156<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">29\/64<\/td>\n <td class=\"decimal-col\">0.4531<\/td>\n <td class=\"mm-col\">11.5094<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">31\/64<\/td>\n <td class=\"decimal-col\">0.4844<\/td>\n <td class=\"mm-col\">12.3031<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">33\/64<\/td>\n <td class=\"decimal-col\">0.5156<\/td>\n <td class=\"mm-col\">13.0969<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">35\/64<\/td>\n <td class=\"decimal-col\">0.5469<\/td>\n <td class=\"mm-col\">13.8906<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">37\/64<\/td>\n <td class=\"decimal-col\">0.5781<\/td>\n <td class=\"mm-col\">14.6844<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">39\/64<\/td>\n <td class=\"decimal-col\">0.6094<\/td>\n <td class=\"mm-col\">15.4781<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">41\/64<\/td>\n <td class=\"decimal-col\">0.6406<\/td>\n <td class=\"mm-col\">16.2719<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">43\/64<\/td>\n <td class=\"decimal-col\">0.6719<\/td>\n <td class=\"mm-col\">17.0656<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">45\/64<\/td>\n <td class=\"decimal-col\">0.7031<\/td>\n <td class=\"mm-col\">17.8594<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">47\/64<\/td>\n <td class=\"decimal-col\">0.7344<\/td>\n <td class=\"mm-col\">18.6531<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">49\/64<\/td>\n <td class=\"decimal-col\">0.7656<\/td>\n <td class=\"mm-col\">19.4469<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">51\/64<\/td>\n <td class=\"decimal-col\">0.7969<\/td>\n <td class=\"mm-col\">20.2406<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">53\/64<\/td>\n <td class=\"decimal-col\">0.8281<\/td>\n <td class=\"mm-col\">21.0344<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">55\/64<\/td>\n <td class=\"decimal-col\">0.8594<\/td>\n <td class=\"mm-col\">21.8281<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">57\/64<\/td>\n <td class=\"decimal-col\">0.8906<\/td>\n <td class=\"mm-col\">22.6219<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">59\/64<\/td>\n <td class=\"decimal-col\">0.9219<\/td>\n <td class=\"mm-col\">23.4156<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">61\/64<\/td>\n <td class=\"decimal-col\">0.9531<\/td>\n <td class=\"mm-col\">24.2094<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">63\/64<\/td>\n <td class=\"decimal-col\">0.9844<\/td>\n <td class=\"mm-col\">25.0031<\/td>\n <\/tr>\n <tr><td colspan=\"3\" class=\"section-header\">One Hundred Twenty-Eighths<\/td><\/tr>\n <tr>\n <td class=\"fraction-col\">1\/128<\/td>\n <td class=\"decimal-col\">0.0078<\/td>\n <td class=\"mm-col\">0.1984<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">3\/128<\/td>\n <td class=\"decimal-col\">0.0234<\/td>\n <td class=\"mm-col\">0.5953<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">5\/128<\/td>\n <td class=\"decimal-col\">0.0391<\/td>\n <td class=\"mm-col\">0.9922<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">7\/128<\/td>\n <td class=\"decimal-col\">0.0547<\/td>\n <td class=\"mm-col\">1.3891<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">9\/128<\/td>\n <td class=\"decimal-col\">0.0703<\/td>\n <td class=\"mm-col\">1.7859<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">11\/128<\/td>\n <td class=\"decimal-col\">0.0859<\/td>\n <td class=\"mm-col\">2.1828<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">13\/128<\/td>\n <td class=\"decimal-col\">0.1016<\/td>\n <td class=\"mm-col\">2.5797<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">15\/128<\/td>\n <td class=\"decimal-col\">0.1172<\/td>\n <td class=\"mm-col\">2.9766<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">17\/128<\/td>\n <td class=\"decimal-col\">0.1328<\/td>\n <td class=\"mm-col\">3.3734<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">19\/128<\/td>\n <td class=\"decimal-col\">0.1484<\/td>\n <td class=\"mm-col\">3.7703<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">21\/128<\/td>\n <td class=\"decimal-col\">0.1641<\/td>\n <td class=\"mm-col\">4.1672<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">23\/128<\/td>\n <td class=\"decimal-col\">0.1797<\/td>\n <td class=\"mm-col\">4.5641<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">25\/128<\/td>\n <td class=\"decimal-col\">0.1953<\/td>\n <td class=\"mm-col\">4.9609<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">27\/128<\/td>\n <td class=\"decimal-col\">0.2109<\/td>\n <td class=\"mm-col\">5.3578<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">29\/128<\/td>\n <td class=\"decimal-col\">0.2266<\/td>\n <td class=\"mm-col\">5.7547<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">31\/128<\/td>\n <td class=\"decimal-col\">0.2422<\/td>\n <td class=\"mm-col\">6.1516<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">33\/128<\/td>\n <td class=\"decimal-col\">0.2578<\/td>\n <td class=\"mm-col\">6.5484<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">35\/128<\/td>\n <td class=\"decimal-col\">0.2734<\/td>\n <td class=\"mm-col\">6.9453<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">37\/128<\/td>\n <td class=\"decimal-col\">0.2891<\/td>\n <td class=\"mm-col\">7.3422<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">39\/128<\/td>\n <td class=\"decimal-col\">0.3047<\/td>\n <td class=\"mm-col\">7.7391<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">41\/128<\/td>\n <td class=\"decimal-col\">0.3203<\/td>\n <td class=\"mm-col\">8.1359<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">43\/128<\/td>\n <td class=\"decimal-col\">0.3359<\/td>\n <td class=\"mm-col\">8.5328<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">45\/128<\/td>\n <td class=\"decimal-col\">0.3516<\/td>\n <td class=\"mm-col\">8.9297<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">47\/128<\/td>\n <td class=\"decimal-col\">0.3672<\/td>\n <td class=\"mm-col\">9.3266<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">49\/128<\/td>\n <td class=\"decimal-col\">0.3828<\/td>\n <td class=\"mm-col\">9.7234<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">51\/128<\/td>\n <td class=\"decimal-col\">0.3984<\/td>\n <td class=\"mm-col\">10.1203<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">53\/128<\/td>\n <td class=\"decimal-col\">0.4141<\/td>\n <td class=\"mm-col\">10.5172<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">55\/128<\/td>\n <td class=\"decimal-col\">0.4297<\/td>\n <td class=\"mm-col\">10.9141<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">57\/128<\/td>\n <td class=\"decimal-col\">0.4453<\/td>\n <td class=\"mm-col\">11.3109<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">59\/128<\/td>\n <td class=\"decimal-col\">0.4609<\/td>\n <td class=\"mm-col\">11.7078<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">61\/128<\/td>\n <td class=\"decimal-col\">0.4766<\/td>\n <td class=\"mm-col\">12.1047<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">63\/128<\/td>\n <td class=\"decimal-col\">0.4922<\/td>\n <td class=\"mm-col\">12.5016<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">65\/128<\/td>\n <td class=\"decimal-col\">0.5078<\/td>\n <td class=\"mm-col\">12.8984<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">67\/128<\/td>\n <td class=\"decimal-col\">0.5234<\/td>\n <td class=\"mm-col\">13.2953<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">69\/128<\/td>\n <td class=\"decimal-col\">0.5391<\/td>\n <td class=\"mm-col\">13.6922<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">71\/128<\/td>\n <td class=\"decimal-col\">0.5547<\/td>\n <td class=\"mm-col\">14.0891<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">73\/128<\/td>\n <td class=\"decimal-col\">0.5703<\/td>\n <td class=\"mm-col\">14.4859<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">75\/128<\/td>\n <td class=\"decimal-col\">0.5859<\/td>\n <td class=\"mm-col\">14.8828<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">77\/128<\/td>\n <td class=\"decimal-col\">0.6016<\/td>\n <td class=\"mm-col\">15.2797<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">79\/128<\/td>\n <td class=\"decimal-col\">0.6172<\/td>\n <td class=\"mm-col\">15.6766<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">81\/128<\/td>\n <td class=\"decimal-col\">0.6328<\/td>\n <td class=\"mm-col\">16.0734<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">83\/128<\/td>\n <td class=\"decimal-col\">0.6484<\/td>\n <td class=\"mm-col\">16.4703<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">85\/128<\/td>\n <td class=\"decimal-col\">0.6641<\/td>\n <td class=\"mm-col\">16.8672<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">87\/128<\/td>\n <td class=\"decimal-col\">0.6797<\/td>\n <td class=\"mm-col\">17.2641<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">89\/128<\/td>\n <td class=\"decimal-col\">0.6953<\/td>\n <td class=\"mm-col\">17.6609<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">91\/128<\/td>\n <td class=\"decimal-col\">0.7109<\/td>\n <td class=\"mm-col\">18.0578<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">93\/128<\/td>\n <td class=\"decimal-col\">0.7266<\/td>\n <td class=\"mm-col\">18.4547<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">95\/128<\/td>\n <td class=\"decimal-col\">0.7422<\/td>\n <td class=\"mm-col\">18.8516<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">97\/128<\/td>\n <td class=\"decimal-col\">0.7578<\/td>\n <td class=\"mm-col\">19.2484<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">99\/128<\/td>\n <td class=\"decimal-col\">0.7734<\/td>\n <td class=\"mm-col\">19.6453<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">101\/128<\/td>\n <td class=\"decimal-col\">0.7891<\/td>\n <td class=\"mm-col\">20.0422<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">103\/128<\/td>\n <td class=\"decimal-col\">0.8047<\/td>\n <td class=\"mm-col\">20.4391<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">105\/128<\/td>\n <td class=\"decimal-col\">0.8203<\/td>\n <td class=\"mm-col\">20.8359<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">107\/128<\/td>\n <td class=\"decimal-col\">0.8359<\/td>\n <td class=\"mm-col\">21.2328<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">109\/128<\/td>\n <td class=\"decimal-col\">0.8516<\/td>\n <td class=\"mm-col\">21.6297<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">111\/128<\/td>\n <td class=\"decimal-col\">0.8672<\/td>\n <td class=\"mm-col\">22.0266<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">113\/128<\/td>\n <td class=\"decimal-col\">0.8828<\/td>\n <td class=\"mm-col\">22.4234<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">115\/128<\/td>\n <td class=\"decimal-col\">0.8984<\/td>\n <td class=\"mm-col\">22.8203<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">117\/128<\/td>\n <td class=\"decimal-col\">0.9141<\/td>\n <td class=\"mm-col\">23.2172<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">119\/128<\/td>\n <td class=\"decimal-col\">0.9297<\/td>\n <td class=\"mm-col\">23.6141<\/td>\n <\/tr>\n <tr>\n <td class=\"fraction-col\">121\/128<\/td>\n <td class=\"decimal-col\">0.9453<\/td>\n <td class=\"mm-col\">24.0109\n <\/td><\/tr><\/tbody><\/table>\n\n <\/div>\n <\/div>\n\n <script>\n function gcd(a, b) {\n return b === 0 ? a : gcd(b, a % b);\n }\n\n function reduceFraction(num, den) {\n const divisor = gcd(num, den);\n return [num \/ divisor, den \/ divisor];\n }\n\n function generateConversions() {\n const tbody = document.getElementById('tableBody');\n const denominators = [2, 4, 8, 16, 32, 64, 128];\n const denominatorNames = {\n 2: 'Halves',\n 4: 'Quarters', \n 8: 'Eighths',\n 16: 'Sixteenths',\n 32: 'Thirty-Seconds',\n 64: 'Sixty-Fourths',\n 128: 'One Hundred Twenty-Eighths'\n };\n const mmPerInch = 25.4;\n \n \/\/ Add whole inch first\n let row = tbody.insertRow();\n row.innerHTML = `\n <td class=\"fraction-col\">1<\/td>\n <td class=\"decimal-col\">1.0000<\/td>\n <td class=\"mm-col\">25.4000<\/td>\n `;\n\n denominators.forEach(denominator => {\n \/\/ Add section header with descriptive name\n let headerRow = tbody.insertRow();\n headerRow.innerHTML = `<td colspan=\"3\" class=\"section-header\">${denominatorNames[denominator]}<\/td>`;\n\n \/\/ Generate fractions for this denominator\n for (let numerator = 1; numerator < denominator; numerator++) {\n const [reducedNum, reducedDen] = reduceFraction(numerator, denominator);\n \n \/\/ Only show if this is the reduced form (avoid duplicates)\n if (reducedDen === denominator) {\n const decimal = numerator \/ denominator;\n const mm = decimal * mmPerInch;\n \n let row = tbody.insertRow();\n let fractionText = reducedNum === 1 && reducedDen === 1 ? '1' : `${reducedNum}\/${reducedDen}`;\n \n row.innerHTML = `\n <td class=\"fraction-col\">${fractionText}<\/td>\n <td class=\"decimal-col\">${decimal.toFixed(4)}<\/td>\n <td class=\"mm-col\">${mm.toFixed(4)}<\/td>\n `;\n }\n }\n });\n }\n\n \/\/ Generate the table when page loads\n generateConversions();\n <\/script>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2>Fractional Inches to Decimal to mm Calculator<\/h2>\n\n\n\n<meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Inches to Decimal\/MM Calculator<\/title>\n <style>\n .fraction-calculator {\n font-family: Arial, sans-serif;\n max-width: 500px;\n margin: 20px auto;\n padding: 30px;\n background: white;\n border-radius: 10px;\n box-shadow: 0 4px 15px rgba(0,0,0,0.1);\n }\n \n .fraction-calculator h2 {\n text-align: center;\n color: #333;\n margin-bottom: 30px;\n }\n \n .fraction-calculator .input-group {\n margin-bottom: 20px;\n }\n \n .fraction-calculator label {\n display: block;\n margin-bottom: 8px;\n font-weight: bold;\n color: #555;\n }\n \n .fraction-calculator input, .fraction-calculator select {\n width: 100%;\n padding: 12px;\n border: 2px solid #ddd;\n border-radius: 6px;\n font-size: 16px;\n box-sizing: border-box;\n }\n \n .fraction-calculator input:focus, .fraction-calculator select:focus {\n border-color: #4CAF50;\n outline: none;\n }\n \n .fraction-calculator .fraction-inputs {\n display: flex;\n gap: 10px;\n align-items: center;\n }\n \n .fraction-calculator .fraction-inputs input {\n width: 80px;\n }\n \n .fraction-calculator .fraction-inputs span {\n font-size: 20px;\n font-weight: bold;\n }\n \n .fraction-calculator .calculate-btn {\n width: 100%;\n padding: 15px;\n background-color: #4CAF50;\n color: white;\n border: none;\n border-radius: 6px;\n font-size: 18px;\n font-weight: bold;\n cursor: pointer;\n margin: 20px 0;\n }\n \n .fraction-calculator .calculate-btn:hover {\n background-color: #45a049;\n }\n \n .fraction-calculator .results {\n background-color: #f8f9fa;\n padding: 20px;\n border-radius: 6px;\n border-left: 4px solid #4CAF50;\n margin-top: 20px;\n }\n \n .fraction-calculator .result-item {\n display: flex;\n justify-content: space-between;\n align-items: center;\n margin-bottom: 10px;\n padding: 8px 0;\n border-bottom: 1px solid #e0e0e0;\n }\n \n .fraction-calculator .result-item:last-child {\n border-bottom: none;\n margin-bottom: 0;\n }\n \n .fraction-calculator .result-label {\n font-weight: bold;\n color: #555;\n }\n \n .fraction-calculator .result-value {\n font-family: monospace;\n font-size: 18px;\n color: #333;\n font-weight: bold;\n }\n \n .fraction-calculator .error {\n color: #d32f2f;\n background-color: #ffebee;\n padding: 10px;\n border-radius: 4px;\n margin-top: 10px;\n }\n <\/style>\n\n\n <div class=\"fraction-calculator\">\n\n \n <div class=\"input-group\">\n <label for=\"wholeInches\">Whole Inches:<\/label>\n <input type=\"number\" id=\"wholeInches\" min=\"0\" step=\"1\" value=\"0\" placeholder=\"Enter whole inches\">\n <\/div>\n \n <div class=\"input-group\">\n <label>Fraction:<\/label>\n <div class=\"fraction-inputs\">\n <input type=\"number\" id=\"numerator\" min=\"0\" step=\"1\" value=\"0\" placeholder=\"0\">\n <span>\/<\/span>\n <input type=\"number\" id=\"denominator\" min=\"1\" step=\"1\" value=\"16\" placeholder=\"16\">\n <\/div>\n <\/div>\n \n <button class=\"calculate-btn\" onclick=\"calculate()\">Calculate<\/button>\n \n <div id=\"results\" class=\"results\" style=\"display: none;\">\n <div class=\"result-item\">\n <span class=\"result-label\">Input:<\/span>\n <span class=\"result-value\" id=\"inputDisplay\"><\/span>\n <\/div>\n <div class=\"result-item\">\n <span class=\"result-label\">Decimal Inches:<\/span>\n <span class=\"result-value\" id=\"decimalResult\"><\/span>\n <\/div>\n <div class=\"result-item\">\n <span class=\"result-label\">Millimeters:<\/span>\n <span class=\"result-value\" id=\"mmResult\"><\/span>\n <\/div>\n <\/div>\n \n <div id=\"error\" class=\"error\" style=\"display: none;\"><\/div>\n <\/div>\n\n <script>\n function gcd(a, b) {\n return b === 0 ? a : gcd(b, a % b);\n }\n\n function reduceFraction(num, den) {\n if (num === 0) return [0, 1];\n const divisor = gcd(Math.abs(num), Math.abs(den));\n return [num \/ divisor, den \/ divisor];\n }\n\n function calculate() {\n const wholeInches = parseFloat(document.getElementById('wholeInches').value) || 0;\n const numerator = parseInt(document.getElementById('numerator').value) || 0;\n const denominator = parseInt(document.getElementById('denominator').value) || 1;\n \n const errorDiv = document.getElementById('error');\n const resultsDiv = document.getElementById('results');\n \n \/\/ Clear previous errors\n errorDiv.style.display = 'none';\n \n \/\/ Validation\n if (wholeInches < 0) {\n errorDiv.textContent = 'Whole inches cannot be negative.';\n errorDiv.style.display = 'block';\n resultsDiv.style.display = 'none';\n return;\n }\n \n if (numerator < 0) {\n errorDiv.textContent = 'Numerator cannot be negative.';\n errorDiv.style.display = 'block';\n resultsDiv.style.display = 'none';\n return;\n }\n \n if (denominator <= 0) {\n errorDiv.textContent = 'Denominator must be greater than zero.';\n errorDiv.style.display = 'block';\n resultsDiv.style.display = 'none';\n return;\n }\n \n if (numerator >= denominator && numerator > 0) {\n errorDiv.textContent = 'Numerator must be less than denominator for proper fractions.';\n errorDiv.style.display = 'block';\n resultsDiv.style.display = 'none';\n return;\n }\n \n \/\/ Calculate decimal inches\n const fractionDecimal = numerator \/ denominator;\n const totalDecimalInches = wholeInches + fractionDecimal;\n \n \/\/ Calculate millimeters\n const millimeters = totalDecimalInches * 25.4;\n \n \/\/ Create input display\n let inputDisplay = '';\n if (wholeInches > 0 && numerator > 0) {\n const [reducedNum, reducedDen] = reduceFraction(numerator, denominator);\n inputDisplay = `${wholeInches} ${reducedNum}\/${reducedDen}\"`;\n } else if (wholeInches > 0) {\n inputDisplay = `${wholeInches}\"`;\n } else if (numerator > 0) {\n const [reducedNum, reducedDen] = reduceFraction(numerator, denominator);\n inputDisplay = `${reducedNum}\/${reducedDen}\"`;\n } else {\n inputDisplay = '0\"';\n }\n \n \/\/ Display results\n document.getElementById('inputDisplay').textContent = inputDisplay;\n document.getElementById('decimalResult').textContent = totalDecimalInches.toFixed(4) + '\"';\n document.getElementById('mmResult').textContent = millimeters.toFixed(4) + ' mm';\n \n resultsDiv.style.display = 'block';\n }\n \n \/\/ Calculate on Enter key press\n document.addEventListener('keypress', function(event) {\n if (event.key === 'Enter') {\n calculate();\n }\n });\n \n \/\/ Auto-calculate when inputs change\n \/\/ document.getElementById('wholeInches').addEventListener('input', calculate);\n \/\/ document.getElementById('numerator').addEventListener('input', calculate);\n \/\/ document.getElementById('denominator').addEventListener('change', calculate);\n \n \/\/ Initial calculation - removed\n \/\/ calculate();\n <\/script>\n\n\n\n<p><a href=\"https:\/\/us.misumi-ec.com\/\" title=\"\">MISUMI USA<\/a> carries a wide range of configurable parts and materials for every type of industrial manufacturing job including – <a href=\"https:\/\/us.misumi-ec.com\/vona2\/mech\/M1500000000\/M1501000000\/M1501010000\/\" title=\"\">aluminum extrusions<\/a>, <a href=\"https:\/\/us.misumi-ec.com\/vona2\/mech\/M0100000000\/M0101000000\/\" title=\"\">linear shafts<\/a>, and more. If you have any questions about sizing or measurements for your next project or current fix, please feel free to connect with our product experts and engineers. And, be sure check out our other helpful resources articles on <a href=\"https:\/\/us.misumi-ec.com\/blog\/inches-to-millimeters-conversion-calculator\/\" title=\"\">inches to millimeters conversion<\/a>, <a href=\"https:\/\/us.misumi-ec.com\/blog\/metric-socket-head-cap-screws-dimensions\/\" title=\"\">metric socket head cap screw size chart<\/a>, and more.<\/p>\n\n\n\n<p>Author: <a href=\"https:\/\/us.misumi-ec.com\/blog\/author\/sbredemann\/\">Scott Bredemann<\/a> | Updated: 7\/29\/2025<\/p>\n\n\n\n<p class=\"has-small-font-size\"><strong>Disclaimer<\/strong>:<br>The content on this webpage is for informational purposes only. MISUMI makes no guarantees, expressed or implied, regarding the accuracy, completeness, or validity of the information. Performance parameters, tolerances, designs, materials, or processes should not be assumed to reflect third-party suppliers\u2019 or manufacturers\u2019 deliverables within MISUMI\u2019s network. Buyers are responsible for specifying their part requirements<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Converting decimals to inches, and inches to decimals is extremely important in many areas of working within manufacturing, and with industrial machine parts. Knowing something as simple as a 1\/8 inch size to decimal, or 0.5938 decimal in inches can have important effects on the outcome of a project or a fix if even slightly off. So, we’ve added this […]<\/p>\n","protected":false},"author":70,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/15277"}],"collection":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/users\/70"}],"replies":[{"embeddable":true,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/comments?post=15277"}],"version-history":[{"count":5,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/15277\/revisions"}],"predecessor-version":[{"id":15285,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/15277\/revisions\/15285"}],"wp:attachment":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/media?parent=15277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}