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Convert Inches to Millimeters

Please provide values below to convert Inches [in] to Millimeters [mm].

Inches
in
Millimeters
0.00mm

How to Convert Inches to Millimeters

1 in = 25.4 mm

1 mm = 0.03937007874015748 in

Example: convert 10 in to mm: 10 in = 10 × 25.4 in = 254 in

Inches

Definition: An inch (in) is a unit of length in the imperial and US customary systems, equal to 1/12 of a foot or 2.54 centimeters.

History: The inch originates from medieval England, historically based on the width of a human thumb. It was later standardized to 2.54 cm and is widely used in carpentry, engineering, and everyday measurements.

Millimeters

Definition: A millimeter (mm) is a unit of length in the metric system, equal to one-thousandth of a meter (1/1,000 m).

History: The millimeter was introduced with the metric system to provide a precise unit for small measurements, commonly used in engineering, manufacturing, and scientific applications.

Inches to Millimeters Conversion Table

InchesMillimeters
0.01 in0.254 mm
0.1 in2.54 mm
1 in25.4 mm
2 in50.8 mm
3 in76.19999999999999 mm
5 in127 mm
10 in254 mm
20 in508 mm
50 in1270 mm
100 in2540 mm
1000 in25400 mm

Convert Inches to Other Length Units

Convert Other Length Units to Millimeters