Inches to Millimeters Converter
Instantly convert Inches (in) to Millimeters (mm). Free online converter with formula and table.
1 Inch = 25.4 millimeters
1 Millimeter = 0.03937 inches
Inches to Millimeters Conversion Table
| Inches (in) | Millimeters (mm) |
|---|---|
| 1 | 25.4 |
| 2 | 50.8 |
| 3 | 76.2 |
| 4 | 101.6 |
| 5 | 127 |
| 10 | 254 |
| 15 | 381 |
| 20 | 508 |
| 25 | 635 |
| 50 | 1,270 |
| 100 | 2,540 |
| 500 | 12,700 |
| 1,000 | 25,400 |
How to Convert Inches to Millimeters
mm = in × 25.4Example
Convert 10 inches to millimeters:
10 in × 25.4 = 254 mmPopular Inch to Millimeter Conversions
About These Units
Frequently Asked Questions
How many Millimeters are in a Inch?
There are 25.4 Millimeters in one Inch.
How do I convert Inches to Millimeters?
To convert Inches to Millimeters, multiply the value in Inches by 25.4. For example, 10 Inches = 10 × 25.4 = 254 Millimeters.
What is the formula to convert Inches to Millimeters?
The formula is: Millimeters (mm) = Inches (in) × 25.4
How do I convert Millimeters back to Inches?
To convert Millimeters to Inches, multiply by 0.03937 (or divide by 25.4).