Inches to MM Conversion Table
View a inch to millimeter conversion chart with common values, an accurate formula, and related length tables.
Conversion chart
Common inches to millimeters values, generated from the selected units.
| inches (in) | millimeters (mm) |
|---|---|
| 1 inch | 25.4 millimeters |
| 2 inches | 50.8 millimeters |
| 5 inches | 127 millimeters |
| 10 inches | 254 millimeters |
| 15 inches | 381 millimeters |
| 20 inches | 508 millimeters |
| 25 inches | 635 millimeters |
| 30 inches | 762 millimeters |
| 40 inches | 1,016 millimeters |
| 50 inches | 1,270 millimeters |
| 75 inches | 1,905 millimeters |
| 100 inches | 2,540 millimeters |
Common values
Common inches to millimeters values, generated from the selected units.
| inches (in) | millimeters (mm) |
|---|---|
| 1 inch | 25.4 millimeters |
| 5 inches | 127 millimeters |
| 10 inches | 254 millimeters |
| 20 inches | 508 millimeters |
| 50 inches | 1,270 millimeters |
| 100 inches | 2,540 millimeters |
Conversion Formula
Multiply the value in inches by 25.4 to get millimeters.
Formula
mm = in × 25.4Example
Convert 10 inches to millimeters:
10 × 25.4= 254 mmFrequently asked questions
How many millimeters are in 1 inch?
1 inch equals 25.4 millimeters.
How do you convert inches to millimeters?
Multiply the value in inches by 25.4 to get millimeters. The formula is mm = in × 25.4.
What is 10 inches in millimeters?
10 inches is approximately 254 millimeters.