Inches to Millimeters conversion table
| Inches | Millimeters |
|---|---|
| 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 |
How to convert inches to millimeters
Millimeters = Inches × 25.4. For example, 2 in = 50.8 mm. Type a value in either box above: the other one updates instantly, both ways.
What is an inch?
An inch (in) is exactly 2.54 centimeters, by the 1959 international yard and pound agreement; 12 inches make a foot.
What is a millimeter?
A millimeter (mm) is one thousandth of a meter, the smallest mark on a metric ruler.
How do I convert inches to millimeters?
Use the formula Millimeters = Inches × 25.4. Type a value in the inches box and the result appears instantly.
How many millimeters are in 1 inch?
1 in = 25.4 mm.
Is this converter free and private?
Yes. It is free, needs no sign-up, and the calculation runs in your browser: nothing is sent to a server.