Convert centimetres to inches

Enter a value in centimetres (cm) to get inches (in). One centimetre is 0.393701 inches; one inch is 2.54 centimetres.

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How to use the Centimetre to inch

  1. Type the number of centimetres.
  2. Click Convert.
  3. Read the result in inches, plus the same value in every other length unit.

cm to in formula

inches = centimetres × 0.393701. To go the other way, centimetres = inches × 2.54 (see inches to centimetres).

Worked example

12 cm × 0.393701 = 4.7244 in.

Centimetres to inches conversion table

CentimetresInches
0.1 cm0.03937 in
0.5 cm0.19685 in
1 cm0.393701 in
2 cm0.787402 in
3 cm1.1811 in
5 cm1.9685 in
10 cm3.937 in
20 cm7.874 in
25 cm9.8425 in
50 cm19.685 in
100 cm39.3701 in
250 cm98.4252 in
500 cm196.8504 in
1,000 cm393.7008 in

About the centimetre

One hundredth of a metre, the everyday metric unit for body height, clothing and furniture outside the USA.

About the inch

Exactly 25.4 mm since the 1959 international yard and pound agreement. Screens, tyres and paper in the USA and UK are still sized in inches.

Related conversions

inches to centimetres · centimetres to feet · any unit.

Frequently asked questions

How many inches in a centimetre?

0.393701 inches.

How many centimetres in a inch?

2.54 centimetres.

Is the factor exact?

The factor 0.393701 is derived from the units' exact definitions; only the display is rounded.

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Last updated 2026-09-23.