1/32 Fraction to Decimal Chart
Use this 1/32 inch chart when you need finer ruler marks than 1/16 without going all the way to 1/64.
1/32 Fraction Converter
Use the main calculator to enter fractions, decimals, mixed inch values, or millimeters. The chart below gives quick reference values for this page.
Open Calculator1/32 Inch Fraction Chart
Every 1/32 increment from 1/32 through 1 inch with decimal and millimeter values.
| Fraction | Decimal inches | Millimeters | Nearest 1/32 |
|---|---|---|---|
| 1/32 | 0.0313 | 0.794 | 1/32 |
| 1/16 | 0.0625 | 1.588 | 1/16 |
| 3/32 | 0.0938 | 2.381 | 3/32 |
| 1/8 | 0.1250 | 3.175 | 1/8 |
| 5/32 | 0.1563 | 3.969 | 5/32 |
| 3/16 | 0.1875 | 4.763 | 3/16 |
| 7/32 | 0.2188 | 5.556 | 7/32 |
| 1/4 | 0.2500 | 6.350 | 1/4 |
| 9/32 | 0.2813 | 7.144 | 9/32 |
| 5/16 | 0.3125 | 7.938 | 5/16 |
| 11/32 | 0.3438 | 8.731 | 11/32 |
| 3/8 | 0.3750 | 9.525 | 3/8 |
| 13/32 | 0.4063 | 10.319 | 13/32 |
| 7/16 | 0.4375 | 11.113 | 7/16 |
| 15/32 | 0.4688 | 11.906 | 15/32 |
| 1/2 | 0.5000 | 12.700 | 1/2 |
| 17/32 | 0.5313 | 13.494 | 17/32 |
| 9/16 | 0.5625 | 14.288 | 9/16 |
| 19/32 | 0.5938 | 15.081 | 19/32 |
| 5/8 | 0.6250 | 15.875 | 5/8 |
| 21/32 | 0.6563 | 16.669 | 21/32 |
| 11/16 | 0.6875 | 17.463 | 11/16 |
| 23/32 | 0.7188 | 18.256 | 23/32 |
| 3/4 | 0.7500 | 19.050 | 3/4 |
| 25/32 | 0.7813 | 19.844 | 25/32 |
| 13/16 | 0.8125 | 20.638 | 13/16 |
| 27/32 | 0.8438 | 21.431 | 27/32 |
| 7/8 | 0.8750 | 22.225 | 7/8 |
| 29/32 | 0.9063 | 23.019 | 29/32 |
| 15/16 | 0.9375 | 23.813 | 15/16 |
| 31/32 | 0.9688 | 24.606 | 31/32 |
| 1 | 1.0000 | 25.400 | 1 |
Note: Values are based on 1 inch = 25.4 millimeters.
When 1/32 is enough
- Use 1/32 for joinery, cabinet layout, and fitting parts.
- It is twice as fine as 1/16.
- It is easier to read than 1/64 on many rulers.
How to read the table
- Find the fraction in the first column.
- Use the decimal value for calculations.
- Use millimeters when matching metric drawings.
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