1 inch to centimeters

1 inch = 2.54 centimeters

Rounded to a practical precision: 2.54 cm.

inches

centimeters

How the calculation works

One inch is 2.54 centimeters, so:

1 in × 2.54 = 2.54 cm

Reversing it, 2.54 centimeters ÷ 2.54 returns 1 inches.

Nearby values

Inches	Centimeters
0.5 in	1.27 cm
1 in	2.54 cm
1.5 in	3.81 cm
2 in	5.08 cm
2.5 in	6.35 cm
3 in	7.62 cm

About these units

Inch (in) — An inch is exactly 25.4 millimetres and is used for screen sizes, pipe diameters and paper dimensions.

Centimeter (cm) — A centimetre is one hundredth of a metre, the everyday metric unit for body measurements and small objects.

Frequently asked questions

How many centimeters is 1 inch?

1 inch is 2.54 centimeters.

How do I convert inches to centimeters myself?

Multiply by 2.54. To go back, divide by 2.54 — or multiply by 0.393701.

Is this figure exact?

The conversion factor between the inch and the centimeter is fixed by definition. The figure above is rounded for readability; the converter carries full precision.

Convert other values

Full inches to centimeters converter · All length converters