Centimeters to Inches

1 cm = 0.3937008 in

Centimeters to inches is the direction most often needed by people in the United States reading metric labels, or by anyone outside the US shopping on American sites. Product dimensions, body measurements, and paper sizes frequently arrive in centimeters, and one centimeter is exactly 1/2.54 of an inch, or roughly 0.39 in.

From

When you need to convert centimeters to inches

Understanding furniture and appliance dimensions listed in centimeters by European retailers
Converting a metric tape-measure reading for a US-based buyer or contractor
Comparing a child height chart in centimeters with a pediatric chart in inches
Sizing picture frames or prints sold in metric formats

How to convert centimeters to inches

in = cm × 0.3937008

Equivalently: in = cm ÷ 2.54.

Example: 5 cm = 1.968504 in

Common lengths in centimeters

Centimeters (cm)	Inches (in)
1 cm	0.3937008 in
2 cm	0.7874016 in
5 cm	1.968504 in
10 cm	3.937008 in
15 cm	5.905512 in
20 cm	7.874016 in
30 cm	11.81102 in
50 cm	19.68504 in
100 cm	39.37008 in

Tips for converting centimeters to inches

Multiply centimeters by 0.4 for a fast estimate. It overshoots by about 1.6%, so treat it as a ballpark figure only.
About 2.5 cm makes one inch, so a result that looks much larger than the centimeter value divided by 2.5 signals a mistake.
When a listing gives both centimeters and millimeters, convert the combined value as one decimal in centimeters to avoid mixing units.

Centimeters to Inches conversion table

Centimeters (cm)	Inches (in)
1 cm	0.3937008 in
2 cm	0.7874016 in
3 cm	1.181102 in
4 cm	1.574803 in
5 cm	1.968504 in
6 cm	2.362205 in
7 cm	2.755906 in
8 cm	3.149606 in
9 cm	3.543307 in
10 cm	3.937008 in
15 cm	5.905512 in
20 cm	7.874016 in
25 cm	9.84252 in
30 cm	11.81102 in
40 cm	15.74803 in
50 cm	19.68504 in
75 cm	29.52756 in
100 cm	39.37008 in
250 cm	98.4252 in
500 cm	196.8504 in
1,000 cm	393.7008 in

About the units

Centimeters: The centimeter is a metric unit of length equal to one hundredth of a meter. It is the everyday unit for body height, clothing and small objects in most of the world.

Inches: The inch is an imperial and US customary unit of length, defined since 1959 as exactly 2.54 centimeters. It is used for screen sizes, clothing and hardware in the US and UK.

Frequently asked questions

How many inches are in 1 centimeter?

1 centimeter equals 0.3937008 inches.

How many centimeters are in 1 inch?

1 inch equals 2.54 centimeters.

How do I convert centimeters to inches?

Use the formula in = cm × 0.3937008. Equivalently, in = cm ÷ 2.54.

What is 10 centimeters in inches?

10 centimeters equals 3.937008 inches.

Related conversions

Factors: NIST SP 811 · SI Brochure · NIST Handbook 44 — Updated October 17, 2026