| Size | mm | inch |
|---|---|---|
| – | 0.1 | 0.0039 |
| – | 0.2 | 0.0079 |
| – | 0.3 | 0.0118 |
| 80 | – | 0.0135 |
| 79 | – | 0.0145 |
| 1/64 | – | 0.0156 |
| – | 0.4 | 0.0157 |
| 78 | – | 0.0160 |
| 77 | – | 0.0189 |
| – | 0.5 | 0.0197 |
| 76 | – | 0.0200 |
| 75 | – | 0.0210 |
| 74 | – | 0.0225 |
| – | 0.6 | 0.0236 |
| 73 | – | 0.0240 |
| 72 | – | 0.0250 |
| 71 | – | 0.0260 |
| – | – | 0.0276 |
| 70 | 0.7 | 0.0280 |
| 69 | – | 0.0292 |
| 68 | – | 0.0310 |
| 1/32 | – | 0.0312 |
| – | – | 0.0315 |
| 67 | 0.8 | 0.0320 |
| 66 | – | 0.0330 |
| 65 | – | 0.0350 |
| – | 0.9 | 0.0354 |
| 64 | – | 0.0360 |
| 63 | – | 0.0370 |
| 62 | – | 0.0380 |
| 61 | – | 0.0390 |
| – | 1 | 0.0394 |
| 60 | – | 0.0400 |
| 59 | – | 0.0410 |
| 58 | – | 0.0420 |
| 57 | – | 0.0430 |
| 56 | – | 0.0465 |
| 3/64 | – | 0.0469 |
| 55 | – | 0.0520 |
| 54 | – | 0.0550 |
| 53 | – | 0.0595 |
| 1/16 | – | 0.0625 |
| 52 | – | 0.0635 |
| 51 | – | 0.0670 |
| 50 | – | 0.0700 |
| 49 | – | 0.0730 |
| 48 | – | 0.0760 |
| 5/64 | – | 0.0781 |
| 47 | – | 0.0785 |
| – | 2 | 0.0787 |
| 46 | – | 0.0810 |
| 45 | – | 0.0820 |
| 44 | – | 0.0860 |
| 43 | – | 0.0890 |
| 42 | – | 0.0935 |
| 3/32 | – | 0.0937 |
| 41 | – | 0.0960 |
| 40 | – | 0.0980 |
| 39 | – | 0.0995 |
| 38 | – | 0.1015 |
| 37 | – | 0.1040 |
| 36 | – | 0.1065 |
| 7/64 | – | 0.1094 |
| 35 | – | 0.1100 |
| 34 | – | 0.1110 |
| 33 | – | 0.1130 |
| 32 | – | 0.1160 |
| – | 3 | 0.1181 |
| 31 | – | 0.120 |
| 1/8 | – | 0.125 |
| 30 | – | 0.1285 |
| 29 | – | 0.136 |
| 28 | – | 0.1405 |
| 9/64 | – | 0.1406 |
| 27 | – | 0.144 |
| 26 | – | 0.147 |
| 25 | – | 0.1495 |
| 24 | – | 0.152 |
| 23 | – | 0.154 |
| 5/32 | – | 0.156 |
| 22 | – | 0.157 |
| – | 4 | 0.1575 |
| 21 | – | 0.159 |
| 20 | – | 0.161 |
| 19 | – | 0.166 |
| 18 | – | 0.1695 |
| 17 | – | 0.173 |
| 16 | – | 0.177 |
| 15 | – | 0.18 |
| 14 | – | 0.182 |
| 13 | – | 0.185 |
| 3/16 | – | 0.1875 |
| 12 | – | 0.189 |
| 11 | – | 0.191 |
| 10 | – | 0.1935 |
| 9 | – | 0.196 |
| – | 5 | 0.1968 |
| 8 | – | 0.199 |
| 7 | – | 0.201 |
| 13/64 | – | 0.2031 |
| 6 | – | 0.204 |
| 5 | – | 0.2055 |
| 4 | – | 0.209 |
| 3 | – | 0.213 |
| 7/32 | – | 0.2187 |
| 2 | – | 0.221 |
| 1 | – | 0.228 |
| A | – | 0.234 |
| 15/64 | – | 0.2344 |
| – | 6 | 0.2362 |
| B | – | 0.238 |
| C | – | 0.242 |
| D | – | 0.246 |
| 1/4 | – | 0.25 |
| E | – | 0.25 |
| F | – | 0.257 |
| G | – | 0.261 |
| 17/64 | – | 0.2656 |
| H | – | 0.266 |
| I | – | 0.272 |
| – | 7 | 0.2756 |
| J | – | 0.277 |
| K | – | 0.281 |
| 9/32 | – | 0.2812 |
| L | – | 0.29 |
| M | – | 0.295 |
| 19/64 | – | 0.2969 |
| N | – | 0.302 |
| 5/16 | – | 0.3125 |
| – | 8 | 0.315 |
| O | – | 0.316 |
| P | – | 0.323 |
| 21/64 | – | 0.3281 |
| Q | – | 0.332 |
| R | – | 0.339 |
| 11/32 | – | 0.3437 |
| S | – | 0.348 |
| – | 9 | 0.3543 |
| T | – | 0.358 |
| 23/64 | – | 0.3594 |
| U | – | 0.368 |
| 3/8 | – | 0.375 |
| V | – | 0.377 |
| W | – | 0.386 |
| 25/64 | – | 0.3906 |
| – | 10 | 0.3937 |
| X | – | 0.397 |
| Y | – | 0.404 |
| 13/32 | – | 0.4062 |
| Z | – | 0.413 |
| 27/64 | – | 0.4219 |
| – | 11 | 0.4331 |
| 7/16 | – | 0.4375 |
| 29/64 | – | 0.4531 |
| 15/32 | – | 0.4687 |
| – | 12 | 0.4724 |
| 31/64 | – | 0.4844 |
| 1/2 | – | 0.5 |
| – | 13 | 0.5118 |
| 9/16 | – | 0.5625 |
| 33/64 | – | 0.5156 |
| 17/32 | – | 0.5312 |
| 35/64 | – | 0.5469 |
| – | 14 | 0.5512 |
| 9/16 | – | 0.5625 |
| 37/64 | – | 0.5781 |
| – | 15 | 0.5906 |
| 19/32 | – | 0.5937 |
| 39/64 | – | 0.6094 |
| 5/8 | – | 0.625 |
| – | 16 | 0.6299 |
| 41/64 | – | 0.6406 |
| 21/32 | – | 0.6562 |
| – | 17 | 0.6693 |
| 43/64 | – | 0.6719 |
| 11/16 | – | 0.6875 |
| 45/64 | – | 0.7031 |
| – | 18 | 0.7087 |
| 23/32 | – | 0.7187 |
| 47/64 | – | 0.7344 |
| – | 19 | 0.748 |
| 3/4 | – | 0.75 |
| 49/64 | – | 0.7656 |
| 25/32 | – | 0.7812 |
| – | 20 | 0.7874 |
| 51/64 | – | 0.7969 |
| 13/16 | – | 0.8125 |
| – | 21 | 0.8268 |
| 53/64 | – | 0.8281 |
| 27/32 | – | 0.8437 |
| 55/64 | – | 0.8594 |
| – | 22 | 0.8661 |
| 7/8 | – | 0.875 |
| 57/64 | – | 0.8906 |
| – | 23 | 0.9055 |
| 29/32 | – | 0.9062 |
| 59/64 | – | 0.9219 |
| 15/16 | – | 0.9375 |
| – | 24 | 0.9449 |
| 61/64 | – | 0.9531 |
| 31/32 | – | 0.9687 |
| – | 25 | 0.9842 |
| 63/64 | – | 0.9844 |
| 1 | 25.4 | 1.000 |