Converter: in to mm
Using this tool you can convert inches to millimetres online.
Conversion
Result
1 inch is equal to 25.4 millimetres.
Sub-Units
1 inch can be divided into following parts: 25 millimetres, 400 micrometres.
1in = 25mm 400µmCalculation
Calculation steps derived from formula and a value you have entered:
Formula
You get an exact amount of millimetres by multiplying value in inches by 25.4.
You get an approximate amount of millimetres by dividing value in inches by 0.0393701.
Frequently Asked Questions
Conversion Table
| Inches | Millimetres |
|---|---|
| 0.01 | 0.254 |
| 0.1 | 2.54 |
| 1 | 25.4 |
| 2 | 50.8 |
| 3 | 76.2 |
| 4 | 101.6 |
| 5 | 127 |
| 6 | 152.4 |
| 7 | 177.8 |
| 8 | 203.2 |
| 9 | 228.6 |
| 10 | 254 |
| 20 | 508 |
| 30 | 762 |
| 40 | 1016 |
| 50 | 1270 |
| 60 | 1524 |
| 70 | 1778 |
| 80 | 2032 |
| 90 | 2286 |
| 100 | 2540 |
| 1000 | 25400 |
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