Inches to millimeters

Convert inches to millimeters, with the math shown step by step.

3 in = 76.2 mm

Also equals

How it works

mm = in × 25.4

One inch is exactly 25.4 millimeters, so multiplying by 25.4 turns inches into millimeters. You can type fractions like 1 1/2 too.

Inches	Millimeters	Centimeters	Meters
0 in	0 mm	0	0
1 in	25.4 mm	2.54	0.03
2 in	50.8 mm	5.08	0.05
3 in	76.2 mm	7.62	0.08
4 in	101.6 mm	10.16	0.1
5 in	127 mm	12.7	0.13
6 in	152.4 mm	15.24	0.15

Printed from rocketcalc.io/length/inches-to-mm/3