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Millimetres to inches (mm to in)
Type in either box: millimetres change to inches as you type, and back. There are exactly 25.4 mm in one inch.
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Quick table
Common millimetres to inches
| Millimetres (mm) | Inches (in) |
|---|---|
| 1 mm | 0.0394 in |
| 2 mm | 0.0787 in |
| 3 mm | 0.1181 in |
| 4 mm | 0.1575 in |
| 5 mm | 0.1969 in |
| 6 mm | 0.2362 in |
| 8 mm | 0.315 in |
| 10 mm | 0.3937 in |
| 12 mm | 0.4724 in |
| 15 mm | 0.5906 in |
| 20 mm | 0.7874 in |
| 25 mm | 0.9843 in |
| 30 mm | 1.1811 in |
| 40 mm | 1.5748 in |
| 50 mm | 1.9685 in |
| 60 mm | 2.3622 in |
| 75 mm | 2.9528 in |
| 100 mm | 3.937 in |
| 150 mm | 5.9055 in |
| 200 mm | 7.874 in |
| 250 mm | 9.8425 in |
| 300 mm | 11.811 in |
| 500 mm | 19.685 in |
| 1,000 mm | 39.3701 in |
Questions
Good to know
How do I convert millimetres to inches?
Use this formula: inches = mm ÷ 25.4. There are exactly 25.4 mm in one inch.
What is 1 mm in in?
1 mm is 0.0394 in.
Need other units?
Use our length converter to see every unit at once.

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