Quick answer: 1 mm = 0.03937008 in
About the Millimetres to Inches
There are 0.03937008 inches in one millimetre, so to convert millimetres to inches divide by 25.4.
The table below lists common values; type any number above for an exact result.
How to convert millimetres to inches (mm to in)
- Enter your numbers (or keep the example).
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millimetres to inches conversion table
| mm | in |
|---|---|
| 1 mm | 0.03937008 in |
| 2 mm | 0.07874016 in |
| 5 mm | 0.19685039 in |
| 10 mm | 0.39370079 in |
| 20 mm | 0.78740157 in |
| 25 mm | 0.98425197 in |
| 50 mm | 1.968504 in |
| 75 mm | 2.952756 in |
| 100 mm | 3.937008 in |
| 250 mm | 9.84252 in |
| 500 mm | 19.685039 in |
| 1,000 mm | 39.370079 in |
How it's calculated
in = mm ÷ 25.4
Features
- Instant resultsUpdates as you type.
- Shareable linkThe URL keeps your inputs.
- Reference tableCommon values on this page.
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Frequently asked questions
How many inches are in 1 millimetre?
1 mm = 0.03937008 in.
How many millimetres are in 1 inche?
1 in = 25.4 mm.
Is the Millimetres to Inches free?
Yes, the Millimetres to Inches is free with no sign-up, no limits and no ads covering the result.
Does it work on my phone?
Yes. It works in any modern browser on phones, tablets and computers, and keeps working offline once the page has loaded.
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