Millimetre (mm) to Inch (in) Converter

1 mm = 0.03937007874 in

To convert Millimetre (mm) to Inch (in), multiply the value by 0.03937007874 — one mm is exactly 0.03937007874 in. Both are units of Length. The table below lists the most-searched conversions, and the converter handles any value.

Formula

in = mm × 0.03937007874

mm to in conversion table

mm	in
1 mm	0.03937007874 in
2 mm	0.07874015748 in
3 mm	0.1181102362 in
5 mm	0.1968503937 in
10 mm	0.3937007874 in
15 mm	0.5905511811 in
20 mm	0.7874015748 in
25 mm	0.9842519685 in
30 mm	1.181102362 in
50 mm	1.968503937 in
75 mm	2.952755906 in
100 mm	3.937007874 in
150 mm	5.905511811 in
200 mm	7.874015748 in
500 mm	19.68503937 in
1000 mm	39.37007874 in

Open the full unit converter Reverse conversion: Inch → Millimetre

Frequently asked questions

How many in are in 1 mm?+

1 Millimetre equals 0.03937007874 Inch, so 1 mm = 0.03937007874 in.

What is the formula to convert mm to in?+

Multiply the number of Millimetre by 0.03937007874. In other words: in = mm × 0.03937007874.

How much is 1 mm in in?+

1 Millimetre = 0.03937007874 Inch (1 mm = 0.03937007874 in).

Is this conversion exact?+

Yes. The factor used is the unit’s official definition; results are rounded to 10 significant digits for readability.

Other common conversions

1 mm → in 2 mm → in 3 mm → in 5 mm → in 10 mm → in 15 mm → in 20 mm → in 25 mm → in 30 mm → in 50 mm → in 75 mm → in 100 mm → in 150 mm → in 200 mm → in 500 mm → in 1000 mm → in