Inches to Millimeters

Convert between Inches and mm with step-by-step calculation. 1 Inches = 25.4 mm.

Inches to mm

From Inches

To mm

Inches to mm conversion table

Inches	mm
1	25.4
2	50.8
5	127
10	254
25	635
50	1270
100	2540
250	6350
500	12700
1000	25400

How to Convert Inches to mm

To convert Inches to mm, use the conversion factor: 1 Inches = 25.4 mm. Enter any value above and click Convert to see the step-by-step calculation.

Formula

Multiply or divide the value by the conversion factor to get the result. The calculator shows every step of the arithmetic.

Frequently Asked Questions

How many mm are in 1 Inches?

1 Inches = 25.4 mm.

What category is this conversion?

This is a Length conversion.

Complete list of Inches conversions