Conversion tool

Inches to cm converter

To convert inches to centimeters, multiply by 2.54. One inch equals exactly 2.54 cm, so 6 inches is 15.24 cm. Enter a value below for an exact result.

Live conversion

The formula

centimeters = inches × 2.54

The inch is defined as exactly 2.54 cm, so this conversion is exact. To go the other way, divide centimeters by 2.54.

Inches to cm chart

Inches Centimeters Millimeters
0.5 in 1.27 cm 12.7 mm
1 in 2.54 cm 25.4 mm
2 in 5.08 cm 50.8 mm
3 in 7.62 cm 76.2 mm
4 in 10.16 cm 101.6 mm
5 in 12.70 cm 127.0 mm
6 in 15.24 cm 152.4 mm
10 in 25.40 cm 254.0 mm
12 in 30.48 cm 304.8 mm
24 in 60.96 cm 609.6 mm
36 in 91.44 cm 914.4 mm

Inches to cm FAQ

How do you convert inches to cm? +

Multiply the inch value by 2.54, because one inch equals exactly 2.54 centimeters. For example, 6 inches × 2.54 = 15.24 cm.

How many cm is 1 inch? +

One inch equals exactly 2.54 centimeters, or 25.4 millimeters.

How many cm is 12 inches (1 foot)? +

12 inches equals 30.48 cm, so one foot is just over 30 centimeters.

Why is 1 inch exactly 2.54 cm? +

Since 1959 the international inch has been defined as exactly 2.54 centimeters by agreement, so the conversion is exact rather than rounded.

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