ACCURATE CONVERSION
Millimeters to Inches Converter
Convert millimeters (mm) to inches (in) with a standards-based formula.
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To
How to convert millimeters to inches
Enter a value in the converter above. The result updates immediately using the relationship below.
FORMULA1 millimeter = 0.03937008 inches
Millimeters to Inches conversion table
| Millimeters (mm) | Inches (in) |
|---|---|
| 1 | 0.03937008 |
| 5 | 0.19685039 |
| 10 | 0.39370079 |
| 20 | 0.78740157 |
| 50 | 1.96850394 |
| 100 | 3.93700787 |
Common values
For a quick estimate, multiply by the factor above. Use more decimal places when technical work requires additional precision.
Frequently asked questions
How many inches are in one millimeter?
One millimeter equals 0.03937008 inches.
How do you convert millimeters to inches?
Multiply the millimeter value by 0.03937008.
Can I convert inches back to millimeters?
Yes. One inch equals 25.4 millimeters; you can also use the swap button.