Centimeters to Inches (cm to in)

Convert centimetres to inches for clothing sizes, screen sizes, paper, furniture or height.

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From

Unit

1 cm = 0.3937007874 in

Factor: 1 cm = 0.393700787402 in

Conversion table: Centimetre (cm) → Inch (in)
cm	in
1 cm	0.393701 in
2 cm	0.787402 in
3 cm	1.1811 in
4 cm	1.5748 in
5 cm	1.9685 in
6 cm	2.3622 in
7 cm	2.75591 in
8 cm	3.14961 in
9 cm	3.54331 in
10 cm	3.93701 in
12 cm	4.72441 in
15 cm	5.90551 in
20 cm	7.87402 in
25 cm	9.84252 in
30 cm	11.811 in
35 cm	13.7795 in
40 cm	15.748 in
45 cm	17.7165 in
50 cm	19.685 in
60 cm	23.622 in
70 cm	27.5591 in
80 cm	31.4961 in
90 cm	35.4331 in
100 cm	39.3701 in
120 cm	47.2441 in
150 cm	59.0551 in
160 cm	62.9921 in
170 cm	66.9291 in
175 cm	68.8976 in
180 cm	70.8661 in
190 cm	74.8031 in
200 cm	78.7402 in

How to use

Enter the length in centimetres.
Read the value in inches.
Use the table for common sizes.

How it works

Exact factor: 1 cm = 0.393701 in (the inverse of 2.54). Quick estimate: divide by 2.5, or multiply by 0.4 and take off a little — 100 cm × 0.4 = 40 in, while the exact value is 39.37 in.

For a height in feet and inches, divide the inches by 12: 180 cm = 70.87 in = 5 ft 10.87 in, about 5 ft 11 in.

Examples

Height: 180 cm = 70.87 in (5 ft 10.9 in).
Waist: 81 cm = 31.9 in.

Common uses

Clothing sizes
Height in feet and inches
Screens and paper sizes

Privacy & security

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Frequently asked questions

How many inches is 1 cm?

0.393701 inches.

How many cm is a foot?

30.48 cm.

How many inches is 180 cm?

180 cm = 70.87 inches, which is 5 ft 10.9 in.

How many inches is 100 cm?

100 cm = 39.37 inches, just under 3 ft 3½ in.

How many inches is 30 cm?

30 cm = 11.81 inches, about the length of a school ruler.

Last updated: September 18, 2026