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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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Formulainches = mm ÷ 25.4

Quick table

Common millimetres to inches

Millimetres (mm)Inches (in)
1 mm0.0394 in
2 mm0.0787 in
3 mm0.1181 in
4 mm0.1575 in
5 mm0.1969 in
6 mm0.2362 in
8 mm0.315 in
10 mm0.3937 in
12 mm0.4724 in
15 mm0.5906 in
20 mm0.7874 in
25 mm0.9843 in
30 mm1.1811 in
40 mm1.5748 in
50 mm1.9685 in
60 mm2.3622 in
75 mm2.9528 in
100 mm3.937 in
150 mm5.9055 in
200 mm7.874 in
250 mm9.8425 in
300 mm11.811 in
500 mm19.685 in
1,000 mm39.3701 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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