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Inches to Millimeters Converter

Please enter the inches (in) value to convert inches to millimeters.

1 in = 25.4 mm

Millimeters to Inches Converter

How Many Millimeters in a Inch?

1 inch is equal to 0.0254 meters.
1 millimeter is equal to 0.001 meters.
There are 25.4 millimeters in a inch.


Conversion Factors for Millimeters and Inches

Unit Symbol Factor
Inches in 2.54 × 10 -2 meter
Millimeters mm 1 × 10 -3 meter

Inch length unit is equal to 25.4 millimeters.


How to Calculate Inches to Millimeters (in to mm)

We calculate the base unit equivalent of inches and millimeters with the factor of meter.

1 in = 2.54 × 10-2 m
1 mm = 1 × 10-3 m
1 mm = 0.001 m

1 m = (1/0.001) mm
1 m = 1000 mm

1 in = 2.54 × 10-2 × 1000 mm
1 in = 25.4 mm

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Inches to Millimeters Conversion Table

Inches Millimeters
1 in25.4 mm
2 in50.8 mm
3 in76.2 mm
4 in101.6 mm
5 in127 mm
6 in152.4 mm
7 in177.8 mm
8 in203.2 mm
9 in228.6 mm
10 in254 mm
11 in279.4 mm
12 in304.8 mm
13 in330.2 mm
14 in355.6 mm
15 in381 mm
16 in406.4 mm
17 in431.8 mm
18 in457.2 mm
19 in482.6 mm
20 in508 mm

Abbreviations


Link to inches to millimeters converter

Inches to Millimeters Converter