Millimetres to Inches converter

How to convert millimetres to inches

1 millimetre equals 0.03937 inches. To convert millimetres to inches, multiply the value by 0.03937. To go the other way, divide by 0.03937 (1 in = 25.4 mm).

The millimetre (mm) is one thousandth of a metre. In American English it is spelled “millimeter”. The inch (in) is exactly 2.54 centimetres. There are 12 inches in a foot.

Common conversions

• 5 mm in inches is 0.197 in.
• 10 mm in inches is 0.394 in.
• 25 mm in inches is 0.984 in.
• 100 mm in inches is 3.94 in.

mm to in conversion table

Millimetres (mm)	Inches (in)
1 mm	0.03937 in
2 mm	0.07874 in
3 mm	0.1181 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
50 mm	1.9685 in
100 mm	3.937 in

Questions and answers

How many inches are in one millimetre?

There are 0.03937 inches in one millimetre.

How do I convert inches back to millimetres?

Multiply by 25.4, or use the Inches to Millimetres converter.

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