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Inches to centimeters (in to cm)

1 in = 2.54 cm. Enter any value below to convert inches to centimeters instantly, or use the length converter for every other unit.

Maintained by Jairo TunisseLast updated Editorial policy

1 in = 2.54 cm

cm = in × 2.54
1 cm = 0.3937007874 in

Convert length

Common length conversions

1 in2.54 cm
1 ft0.3048 m
1 yd0.9144 m
1 mi1.609344 km
1 nmi1.852 km
1 m3.280839895 ft
1 km0.6213711922 mi
1 cm0.3937007874 in

Inches to centimeters conversion table

Inches to centimeters
Inches (in)Centimeters (cm)
1 in2.54 cm
2 in5.08 cm
3 in7.62 cm
6 in15.24 cm
12 in30.48 cm
24 in60.96 cm
36 in91.44 cm
48 in121.92 cm
60 in152.4 cm
72 in182.88 cm

The formula

cm = in × 2.54

1 in = 0.0254 m (exact). 1 cm = 0.01 m. These are exact definitions, so the only rounding is in the displayed result (10 significant digits).

When you need it

Inches to centimeters is the conversion for TV and monitor diagonals, waist and inseam sizes, and US hardware sizes when you shop or ship internationally. Multiply by 2.54 — the result is exact, with no rounding needed for whole inches.

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Frequently asked questions

How do I convert inches to centimeters?

Multiply the value in inches by 2.54 (or divide by 0.3937007874). For example, 6 in = 15.24 cm.

How many centimeters are in one inch?

1 in = 2.54 cm.

How many cm is 12 inches?

12 inches is one foot, which is exactly 30.48 cm.

Are screen sizes measured in inches worldwide?

Yes, display diagonals are quoted in inches almost everywhere; multiply by 2.54 for the size in centimeters.

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