Unit Converter
Inches to Millimeters Converter
Convert inches (inches) to millimeters (mm) instantly in your browser. 1 inch = 25.4 millimeters.
How to convert inches to millimeters
Use the converter above, or multiply the inches value by 25.4. The formula is:
mm = inches × 25.4
Inches to Millimeters conversion table
| Inches (inches) | Millimeters (mm) |
|---|---|
| 1 | 25.4 |
| 2 | 50.8 |
| 5 | 127 |
| 10 | 254 |
| 20 | 508 |
| 50 | 1270 |
| 100 | 2540 |
Common questions
How many millimeters in 1 inch? 1 inch = 25.4 millimeters.
How many inches in 1 millimeter? 1 millimeter = 0.03937 inches.
Is this converter accurate? It uses standard conversion factors and works entirely in your browser. For engineering/medical/financial decisions, verify with a trusted source.