Inches to millimeters

1" = 25.4 mm

Inches

in

Millimeters

25.4

mm

Fraction

1"

Feet & inches

1"

Formula

1 × 25.4

Tip: click or drag on the ruler to set the value.

How to convert

Multiply the inch value by 25.4 to get millimeters.

1 in × 25.4 = 25.4 mm

Quick facts

Millimeters25.4 mm
Centimeters2.54 cm
Meters0.0254 m
As fraction1"

Nearby values

All inches → mm →

13/16"7/8"7/8"15/16"1 1/8"1 3/16"1 1/4"1 5/16"