1 inches to mm
1 in = 25.4 mm
Multiply 1 by 25.4 to get 25.4 mm.
Nearby inches to mm values
| inches | millimeters |
|---|---|
| 0.375 in | 9.525 mm |
| 0.5 in | 12.7 mm |
| 0.625 in | 15.875 mm |
| 0.75 in | 19.05 mm |
| 0.875 in | 22.225 mm |
| 1 in | 25.4 mm |
| 1.5 in | 38.1 mm |
| 2 in | 50.8 mm |
| 2.5 in | 63.5 mm |
| 3 in | 76.2 mm |
| 4 in | 101.6 mm |
Frequently asked questions
What is 1 inches in mm?
1 inches is 25.4 mm. Multiply 1 by 25.4 to get 25.4 mm.
How do you convert 1 inches to mm?
To convert inches to millimeters, multiply the inch value by 25.4. You can also divide by 0.03937007874 to get the same answer. Applied to 1 inches, that gives 25.4 mm.
How many inches are in 1 mm?
1 mm equals 0.03937007874 inches, so 25.4 mm works back to 1 inches.
Convert any value
To convert a value other than 1, use the full inches to mm converter, which includes the formula, the complete conversion chart and unit definitions.