Instant Unit Converter

Convert Millimeters to Inches

Convert Millimeters (mm) to Inches (in) instantly. Enter a value below and the result updates live — accurate to 8 significant figures. 1 Millimeters = 0.039370079 Inches.

Millimeters to Inches formula

Multiply the Millimeters value by 0.039370079.

in = mm × 0.03937007874015748

Millimeters to Inches conversion table

Millimeters (mm) Inches (in)
1 0.039370079
5 0.19685039
10 0.39370079
20 0.78740157
50 1.9685039
100 3.9370079
500 19.685039
1000 39.370079
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Millimeters to Inches — FAQ

What is 1 mm in in?
1 Millimeters (mm) equals 0.039370079 Inches (in). For example, 10 mm = 0.39370079 in.
How do I convert Millimeters to Inches?
Multiply the Millimeters value by 0.039370079. Or simply type any value into the converter above and the Inches result updates instantly.
Is the Millimeters to Inches conversion accurate?
Yes. The conversion uses the exact internationally-defined factor: 1 mm = 0.03937007874015748 in. Results are shown to 8 significant figures.

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