Convert Inches to Millimeters
Instantly convert inches (in) to millimeters (mm) with our free online converter.
25.4
1 in = 25.4 mm
Quick Formula
mm = value × 25.4Multiply the inch value by 25.4.
Common Inches to Millimeters Conversions
| Inches (in) | Millimeters (mm) |
|---|---|
| 1 in | 25.4 mm |
| 2 in | 50.8 mm |
| 5 in | 127 mm |
| 10 in | 254 mm |
| 25 in | 635 mm |
| 50 in | 1,270 mm |
| 100 in | 2,540 mm |
| 250 in | 6,350 mm |
| 500 in | 12,700 mm |
| 1,000 in | 25,400 mm |
How to Convert Inches to Millimeters
To convert inches to millimeters, you can use the following formula:
mm = value × 25.4Multiply the inch value by 25.4. This means that 1 in is equal to 25.4 mm.
Conversion Examples
- •1 in = 25.4 mm
- •2 in = 50.8 mm
- •5 in = 127 mm
- •10 in = 254 mm
- •25 in = 635 mm
About Inches and Millimeters
Inches (in) and Millimeters (mm) are both units of length. The conversion factor between inches and millimeters is constant, making it straightforward to convert between these two units.