インチ分数・ミリ換算表
インチの分数表記を小数およびミリメートル（mm）に素早く換算できる一覧表です。
| Fraction | Decimal (in) | Millimeters (mm) |
|---|---|---|
| 1/32 | 0.0313 | 0.79 |
| 1/16 | 0.0625 | 1.59 |
| 3/32 | 0.0938 | 2.38 |
| 1/8 | 0.125 | 3.17 |
| 5/32 | 0.1563 | 3.97 |
| 3/16 | 0.1875 | 4.76 |
| 7/32 | 0.2188 | 5.56 |
| 1/4 | 0.25 | 6.35 |
| 9/32 | 0.2813 | 7.14 |
| 5/16 | 0.3125 | 7.94 |
| 11/32 | 0.3438 | 8.73 |
| 3/8 | 0.375 | 9.52 |
| 13/32 | 0.4063 | 10.32 |
| 7/16 | 0.4375 | 11.11 |
| 15/32 | 0.4688 | 11.91 |
| 1/2 | 0.5 | 12.70 |
| 17/32 | 0.5313 | 13.49 |
| 9/16 | 0.5625 | 14.29 |
| 19/32 | 0.5938 | 15.08 |
| 5/8 | 0.625 | 15.88 |
| 21/32 | 0.6563 | 16.67 |
| 11/16 | 0.6875 | 17.46 |
| 23/32 | 0.7188 | 18.26 |
| 3/4 | 0.75 | 19.05 |
| 25/32 | 0.7813 | 19.84 |
| 13/16 | 0.8125 | 20.64 |
| 27/32 | 0.8438 | 21.43 |
| 7/8 | 0.875 | 22.22 |
| 29/32 | 0.9063 | 23.02 |
| 15/16 | 0.9375 | 23.81 |
| 31/32 | 0.9688 | 24.61 |
| 1 | 1 | 25.40 |
How to read an inch ruler
An inch is typically divided into fractions rather than decimals. The most common divisions are halves, quarters, eighths, and sixteenths. Some rulers also show thirty-seconds. Use the table above to quickly convert these fractions if needed.