Unit converter

Inches to Millimeters

Instant conversion in your browser — length.

25.4

1 in = 25.4 mm

Quick table Inches → Millimeters

inmm
125.4
5127
10254
25635
501,270
1002,540
50012,700
1,00025,400

About this conversion

Length conversion: 1 inches (in) equals 25.4 mm. As a practical reference, 7 in = 177.8 mm — handy for construction, travel and screen sizes.

inmm
7177.8

Related conversions