{"id":1828,"date":"2021-10-01T13:37:29","date_gmt":"2021-10-01T08:07:29","guid":{"rendered":"https:\/\/drilladvice.com\/?p=1828"},"modified":"2021-10-01T13:37:29","modified_gmt":"2021-10-01T08:07:29","slug":"drill-bit-sizes-in-inches-and-mm-chart-guide","status":"publish","type":"post","link":"https:\/\/drilladvice.com\/drill-bit-sizes-in-inches-and-mm-chart-guide","title":{"rendered":"Drill Bit Sizes in inches and mm: Chart, Convert, Measure"},"content":{"rendered":"\n<p>Drill bit diameters and lengths are available in different sizes. These sizes are measured in both metric units and imperial units using a gauge. In order to ensure the right drill bit size, it should convert between fractions, inches, and millimeters. Using the drill bit chart guide below, you can convert the metric units, imperial units, and fractions correctly. It will help to select a drill bit and drill a hole precisely.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/drilladvice.com\/drill-bit-sizes-in-inches-and-mm-chart-guide\/#Drill_Bit_Size_Chart\" title=\"Drill Bit Size Chart\">Drill Bit Size Chart<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/drilladvice.com\/drill-bit-sizes-in-inches-and-mm-chart-guide\/#Drill_Bit_Size_Conversion_Methods\" title=\"Drill Bit Size Conversion Methods\">Drill Bit Size Conversion Methods<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/drilladvice.com\/drill-bit-sizes-in-inches-and-mm-chart-guide\/#1_How_to_Convert_Drill_Bit_mm_to_Inch\" title=\"1. How to Convert Drill Bit mm to Inch?\">1. How to Convert Drill Bit mm to Inch?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/drilladvice.com\/drill-bit-sizes-in-inches-and-mm-chart-guide\/#2_How_to_Convert_Drill_Bit_Inches_to_mm\" title=\"2. How to Convert Drill Bit Inches to mm?\">2. How to Convert Drill Bit Inches to mm?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/drilladvice.com\/drill-bit-sizes-in-inches-and-mm-chart-guide\/#How_to_Measure_Drill_Bit_Size\" title=\"How to Measure Drill Bit Size?\">How to Measure Drill Bit Size?<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Drill_Bit_Size_Chart\"><\/span>Drill Bit Size Chart<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>By following the above method, this table has been prepared with available drill bit sizes. You can see fractions, inches, and mm values for each drill bit size here.<\/p>\n\n\n\n<figure class=\"wp-block-table aligncenter is-style-stripes\"><table><tbody><tr><td><strong>Fraction<\/strong><\/td><td><strong>inch<\/strong><\/td><td><strong>mm<\/strong><\/td><\/tr><tr><td><strong>1\u204464<\/strong><\/td><td>0.015625<\/td><td>0.396875<\/td><\/tr><tr><td><strong>1\u204432<\/strong><\/td><td>0.03125<\/td><td>0.79375<\/td><\/tr><tr><td><strong>3\u204464<\/strong><\/td><td>0.046875<\/td><td>1.190625<\/td><\/tr><tr><td><strong>1\u204416<\/strong><\/td><td>0.0625<\/td><td>1.5875<\/td><\/tr><tr><td><strong>5\u204464<\/strong><\/td><td>0.078125<\/td><td>1.984375<\/td><\/tr><tr><td><strong>3\u204432<\/strong><\/td><td>0.09375<\/td><td>2.38125<\/td><\/tr><tr><td><strong>7\u204464<\/strong><\/td><td>0.109375<\/td><td>2.778125<\/td><\/tr><tr><td><strong>1\u20448<\/strong><\/td><td>0.125<\/td><td>3.175<\/td><\/tr><tr><td><strong>9\u204464<\/strong><\/td><td>0.140625<\/td><td>3.571875<\/td><\/tr><tr><td><strong>5\u204432<\/strong><\/td><td>0.15625<\/td><td>3.96875<\/td><\/tr><tr><td><strong>11\u204464<\/strong><\/td><td>0.171875<\/td><td>4.365625<\/td><\/tr><tr><td><strong>3\u204416<\/strong><\/td><td>0.1875<\/td><td>4.7625<\/td><\/tr><tr><td><strong>13\u204464<\/strong><\/td><td>0.203125<\/td><td>5.159375<\/td><\/tr><tr><td><strong>7\u204432<\/strong><\/td><td>0.21875<\/td><td>5.55625<\/td><\/tr><tr><td><strong>15\u204464<\/strong><\/td><td>0.234375<\/td><td>5.953125<\/td><\/tr><tr><td><strong>1\u20444<\/strong><\/td><td>0.25<\/td><td>6.35<\/td><\/tr><tr><td><strong>17\u204464<\/strong><\/td><td>0.265625<\/td><td>6.746875<\/td><\/tr><tr><td><strong>9\u204432<\/strong><\/td><td>0.28125<\/td><td>7.14375<\/td><\/tr><tr><td><strong>19\u204464<\/strong><\/td><td>0.296875<\/td><td>7.540625<\/td><\/tr><tr><td><strong>5\u204416<\/strong><\/td><td>0.3125<\/td><td>7.9375<\/td><\/tr><tr><td><strong>21\u204464<\/strong><\/td><td>0.328125<\/td><td>8.334375<\/td><\/tr><tr><td><strong>11\u204432<\/strong><\/td><td>0.34375<\/td><td>8.73125<\/td><\/tr><tr><td><strong>23\u204464<\/strong><\/td><td>0.359375<\/td><td>9.128125<\/td><\/tr><tr><td><strong>3\u20448<\/strong><\/td><td>0.375<\/td><td>9.525<\/td><\/tr><tr><td><strong>25\u204464<\/strong><\/td><td>0.390625<\/td><td>9.921875<\/td><\/tr><tr><td><strong>13\u204432<\/strong><\/td><td>0.40625<\/td><td>10.31875<\/td><\/tr><tr><td><strong>27\u204464<\/strong><\/td><td>0.421875<\/td><td>10.715625<\/td><\/tr><tr><td><strong>7\u204416<\/strong><\/td><td>0.4375<\/td><td>11.1125<\/td><\/tr><tr><td><strong>29\u204464<\/strong><\/td><td>0.453125<\/td><td>11.509375<\/td><\/tr><tr><td><strong>15\u204432<\/strong><\/td><td>0.46875<\/td><td>11.90625<\/td><\/tr><tr><td><strong>31\u204464<\/strong><\/td><td>0.484375<\/td><td>12.303125<\/td><\/tr><tr><td><strong>33\u204464<\/strong><\/td><td>0.515625<\/td><td>13.096875<\/td><\/tr><tr><td><strong>17\u204432<\/strong><\/td><td>0.53125<\/td><td>13.49375<\/td><\/tr><tr><td><strong>35\u204464<\/strong><\/td><td>0.546875<\/td><td>13.890625<\/td><\/tr><tr><td><strong>9\u204416<\/strong><\/td><td>0.5625<\/td><td>14.2875<\/td><\/tr><tr><td><strong>37\u204464<\/strong><\/td><td>0.578125<\/td><td>14.684375<\/td><\/tr><tr><td><strong>19\u204432<\/strong><\/td><td>0.59375<\/td><td>15.08125<\/td><\/tr><tr><td><strong>39\u204464<\/strong><\/td><td>0.609375<\/td><td>15.478125<\/td><\/tr><tr><td><strong>5\u20448<\/strong><\/td><td>0.625<\/td><td>15.875<\/td><\/tr><tr><td><strong>41\u204464<\/strong><\/td><td>0.640625<\/td><td>16.271875<\/td><\/tr><tr><td><strong>21\u204432<\/strong><\/td><td>0.65625<\/td><td>16.66875<\/td><\/tr><tr><td><strong>43\u204464<\/strong><\/td><td>0.671875<\/td><td>17.065625<\/td><\/tr><tr><td><strong>11\u204416<\/strong><\/td><td>0.6875<\/td><td>17.4625<\/td><\/tr><tr><td><strong>45\u204464<\/strong><\/td><td>0.703125<\/td><td>17.859375<\/td><\/tr><tr><td><strong>23\u204432<\/strong><\/td><td>0.71875<\/td><td>18.25625<\/td><\/tr><tr><td><strong>47\u204464<\/strong><\/td><td>0.734375<\/td><td>18.653125<\/td><\/tr><tr><td><strong>3\u20444<\/strong><\/td><td>0.75<\/td><td>19.05<\/td><\/tr><tr><td><strong>49\u204464<\/strong><\/td><td>0.765625<\/td><td>19.446875<\/td><\/tr><tr><td><strong>25\u204432<\/strong><\/td><td>0.78125<\/td><td>19.84375<\/td><\/tr><tr><td><strong>51\u204464<\/strong><\/td><td>0.796875<\/td><td>20.240625<\/td><\/tr><tr><td><strong>13\u204416<\/strong><\/td><td>0.8125<\/td><td>20.6375<\/td><\/tr><tr><td><strong>53\u204464<\/strong><\/td><td>0.828125<\/td><td>21.034375<\/td><\/tr><tr><td><strong>27\u204432<\/strong><\/td><td>0.84375<\/td><td>21.43125<\/td><\/tr><tr><td><strong>55\u204464<\/strong><\/td><td>0.859375<\/td><td>21.828125<\/td><\/tr><tr><td><strong>7\u20448<\/strong><\/td><td>0.875<\/td><td>22.225<\/td><\/tr><tr><td><strong>57\u204464<\/strong><\/td><td>0.890625<\/td><td>22.621875<\/td><\/tr><tr><td><strong>29\u204432<\/strong><\/td><td>0.90625<\/td><td>23.01875<\/td><\/tr><tr><td><strong>59\u204464<\/strong><\/td><td>0.921875<\/td><td>23.415625<\/td><\/tr><tr><td><strong>15\u204416<\/strong><\/td><td>0.9375<\/td><td>23.8125<\/td><\/tr><tr><td><strong>61\u204464<\/strong><\/td><td>0.953125<\/td><td>24.209375<\/td><\/tr><tr><td><strong>31\u204432<\/strong><\/td><td>0.96875<\/td><td>24.60625<\/td><\/tr><tr><td><strong>63\u204464<\/strong><\/td><td>0.984375<\/td><td>25.003125<\/td><\/tr><tr><td><strong>1<\/strong><\/td><td>1<\/td><td>25.4<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Drill Bit Sizes in inches and mm table<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Drill_Bit_Size_Conversion_Methods\"><\/span>Drill Bit Size Conversion Methods<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_How_to_Convert_Drill_Bit_mm_to_Inch\"><\/span>1. How to Convert Drill Bit mm to Inch?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>When the drill bit diameter is available in mm, it can be converted into inches easily. <\/p>\n\n\n\n<p>Mathematically,<\/p>\n\n\n\n<p><strong><span style=\"text-decoration: underline;\">1mm = 0.0393701 inches.<\/span><\/strong><\/p>\n\n\n\n<p>When you need to convert mm to inches, you have to <strong>multiply<\/strong> the mm value by <span style=\"text-decoration: underline;\">0.0393701<\/span><\/p>\n\n\n\n<p>Ex &#8211; 15.875 mm \u00d7 0.0393701 = 0.625000 inches = 5\/8&#8243;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_How_to_Convert_Drill_Bit_Inches_to_mm\"><\/span>2. How to Convert Drill Bit Inches to mm?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>When you measure drill bit size in inches, you can convert it into mm using this method. <\/p>\n\n\n\n<p> <strong>1 inch = 25.4mm<\/strong><\/p>\n\n\n\n<p>You can multiply by <span style=\"text-decoration: underline;\">25.4<\/span> of inches value when you convert that to mm.<\/p>\n\n\n\n<p>Ex &#8211; 0.5 inches = 1\/2&#8243; = 0.5 inches \u00d7 25.4 = 12.7mm<\/p>\n\n\n\n<p>Inches are really popular in the USA but, beyond that, mostly used SI units. So we have to interchange the metric units and imperial units.<\/p>\n\n\n\n<p>The table below will introduce you to the fractions and decimals of inches in<strong> mm<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Measure_Drill_Bit_Size\"><\/span>How to Measure Drill Bit Size?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Remembering everything is not easy. As for me I use this gauge to identify the drill bit size in inches and millimeters quickly. It is <strong><a href=\"https:\/\/amzn.to\/3NDsixT\">IRWIN d<\/a><a href=\"https:\/\/amzn.to\/3NDsixT\" rel=\"nofollow\">r<\/a><a href=\"https:\/\/amzn.to\/3NDsixT\">ill gauge<\/a><\/strong>. You can measure 1\/16&#8243; to 1\/2&#8243; range of drill bits using that gauge. <\/p>\n\n\n\n<p><strong>Related Topics<\/strong><\/p>\n\n\n\n<ul>\n<li><strong><a href=\"https:\/\/drilladvice.com\/drill-bit-material-coating-and-usage-in-depth-guide\/\"><\/a><\/strong><a href=\"https:\/\/drilladvice.com\/drill-bit-angle-chart\"><strong>Drill Bit Angle Chart<\/strong><\/a><\/li>\n\n\n\n<li><strong><a href=\"https:\/\/drilladvice.com\/drill-bit-size-for-wires\">Drill Bit Size For Wires<\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"https:\/\/drilladvice.com\/drill-bit-size-for-screw-numbers\">Drill Bit Size for # Screws<\/a><\/strong><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Drill bit diameters and lengths are available in different sizes. These sizes are measured in both metric units and imperial units using a gauge. In order to ensure the right &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Drill Bit Sizes in inches and mm: Chart, Convert, Measure\" class=\"read-more button\" href=\"https:\/\/drilladvice.com\/drill-bit-sizes-in-inches-and-mm-chart-guide#more-1828\" aria-label=\"Read more about Drill Bit Sizes in inches and mm: Chart, Convert, Measure\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":1834,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"_links":{"self":[{"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/posts\/1828"}],"collection":[{"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/comments?post=1828"}],"version-history":[{"count":0,"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/posts\/1828\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/media\/1834"}],"wp:attachment":[{"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/media?parent=1828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/categories?post=1828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drilladvice.com\/wp-json\/wp\/v2\/tags?post=1828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}