millimetre to inch
Live millimetre (mm) to inch (in) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from millimetre to inch. Use the converter above for arbitrary values.
| millimetre (mm) | → | inch (in) |
|---|---|---|
| 0.001 mm | → | 3.9370e-5 in |
| 0.01 mm | → | 0.000394 in |
| 0.1 mm | → | 0.003937 in |
| 0.5 mm | → | 0.019685 in |
| 1 mm | → | 0.03937 in |
| 2 mm | → | 0.07874 in |
| 5 mm | → | 0.19685 in |
| 10 mm | → | 0.393701 in |
| 100 mm | → | 3.937008 in |
| 1,000 mm | → | 39.370079 in |
About the millimetre
1/1000 of a metre. Standard for small machined parts and rainfall.
About the inch
1/12 of a foot or 25.4 mm. Screen sizes, paper, US fastener sizes.
Frequently asked questions
Frequently Asked Questions
How do I convert millimetre to inch?
Multiply the millimetre value by 0.03937 to get it in inch. For example, 10 mm = 0.3937 in.
What is 1 mm in in?
1 mm = 0.03937 in.
What is 100 mm in in?
100 mm = 3.937 in.
What is the formula?
Linear: multiply by 0.03937 (the unit factor ratio).
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