MILLIMETERS TO INCHES CONVERTER

Millimeters to inches

Enter millimeters, get inches — or swap for inches to mm.

Value

mm

From

To

Millimeters to inches chart

Millimeters (mm)	Inches (in)
1 mm	0.039 in
2 mm	0.079 in
3 mm	0.118 in
4 mm	0.157 in
5 mm	0.197 in
6 mm	0.236 in
8 mm	0.315 in
10 mm	0.394 in
12 mm	0.472 in
15 mm	0.591 in
20 mm	0.787 in
25 mm	0.984 in
25.4 mm	1 in
30 mm	1.181 in
40 mm	1.575 in
50 mm	1.969 in
75 mm	2.953 in
100 mm	3.937 in

Inches to millimeters chart

Inches (in)	Millimeters (mm)
0.063 in	1.587 mm
0.125 in	3.175 mm
0.188 in	4.762 mm
0.25 in	6.35 mm
0.375 in	9.525 mm
0.5 in	12.7 mm
0.625 in	15.875 mm
0.75 in	19.05 mm
1 in	25.4 mm
1.25 in	31.75 mm
1.5 in	38.1 mm
2 in	50.8 mm
3 in	76.2 mm
4 in	101.6 mm
6 in	152.4 mm
12 in	304.8 mm

How many millimeters are in an inch?

Exactly 25.4. Divide millimeters by 25.4 to get inches: 10 mm is 0.3937 in.

How do I convert inches to millimeters?

Multiply by 25.4: ½ inch is 12.7 mm and ¼ inch is 6.35 mm.

What is 1/16 inch in millimeters?

1.5875 mm. The smallest marks on most US tape measures are sixteenths.

What fraction of an inch is 5 mm?

0.197 inches — just over 3/16 inch (0.1875). The decimal to fraction calculator finds the nearest fraction for any decimal.

Why is the answer exact?

Because the inch is defined as exactly 25.4 millimeters, by international agreement since 1959.