Fraction to decimal and mm chart
Every 1/64 of an inch, with decimals and millimeters.
For measurements over an inch, add the whole inches: 2 3/8" is 2.375". Need something between rows? Use the fraction converter.
| Fraction | Decimal | Millimeters |
|---|---|---|
| 1/64" | 0.0156" | 0.40 mm |
| 1/32" | 0.0312" | 0.79 mm |
| 3/64" | 0.0469" | 1.19 mm |
| 1/16" | 0.0625" | 1.59 mm |
| 5/64" | 0.0781" | 1.98 mm |
| 3/32" | 0.0938" | 2.38 mm |
| 7/64" | 0.1094" | 2.78 mm |
| 1/8" | 0.1250" | 3.17 mm |
| 9/64" | 0.1406" | 3.57 mm |
| 5/32" | 0.1562" | 3.97 mm |
| 11/64" | 0.1719" | 4.37 mm |
| 3/16" | 0.1875" | 4.76 mm |
| 13/64" | 0.2031" | 5.16 mm |
| 7/32" | 0.2188" | 5.56 mm |
| 15/64" | 0.2344" | 5.95 mm |
| 1/4" | 0.2500" | 6.35 mm |
| 17/64" | 0.2656" | 6.75 mm |
| 9/32" | 0.2812" | 7.14 mm |
| 19/64" | 0.2969" | 7.54 mm |
| 5/16" | 0.3125" | 7.94 mm |
| 21/64" | 0.3281" | 8.33 mm |
| 11/32" | 0.3438" | 8.73 mm |
| 23/64" | 0.3594" | 9.13 mm |
| 3/8" | 0.3750" | 9.52 mm |
| 25/64" | 0.3906" | 9.92 mm |
| 13/32" | 0.4062" | 10.32 mm |
| 27/64" | 0.4219" | 10.72 mm |
| 7/16" | 0.4375" | 11.11 mm |
| 29/64" | 0.4531" | 11.51 mm |
| 15/32" | 0.4688" | 11.91 mm |
| 31/64" | 0.4844" | 12.30 mm |
| 1/2" | 0.5000" | 12.70 mm |
| 33/64" | 0.5156" | 13.10 mm |
| 17/32" | 0.5312" | 13.49 mm |
| 35/64" | 0.5469" | 13.89 mm |
| 9/16" | 0.5625" | 14.29 mm |
| 37/64" | 0.5781" | 14.68 mm |
| 19/32" | 0.5938" | 15.08 mm |
| 39/64" | 0.6094" | 15.48 mm |
| 5/8" | 0.6250" | 15.88 mm |
| 41/64" | 0.6406" | 16.27 mm |
| 21/32" | 0.6562" | 16.67 mm |
| 43/64" | 0.6719" | 17.07 mm |
| 11/16" | 0.6875" | 17.46 mm |
| 45/64" | 0.7031" | 17.86 mm |
| 23/32" | 0.7188" | 18.26 mm |
| 47/64" | 0.7344" | 18.65 mm |
| 3/4" | 0.7500" | 19.05 mm |
| 49/64" | 0.7656" | 19.45 mm |
| 25/32" | 0.7812" | 19.84 mm |
| 51/64" | 0.7969" | 20.24 mm |
| 13/16" | 0.8125" | 20.64 mm |
| 53/64" | 0.8281" | 21.03 mm |
| 27/32" | 0.8438" | 21.43 mm |
| 55/64" | 0.8594" | 21.83 mm |
| 7/8" | 0.8750" | 22.22 mm |
| 57/64" | 0.8906" | 22.62 mm |
| 29/32" | 0.9062" | 23.02 mm |
| 59/64" | 0.9219" | 23.42 mm |
| 15/16" | 0.9375" | 23.81 mm |
| 61/64" | 0.9531" | 24.21 mm |
| 31/32" | 0.9688" | 24.61 mm |
| 63/64" | 0.9844" | 25.00 mm |
| 1" | 1.0000" | 25.40 mm |