= Mathmatives

Centimeters to Inches Converter (cm to inch)

Enter a value in centimeters to see it in inches instantly, or type in the inches box to convert the other way. 1 centimeter = 0.39370079 inches, and 1 inch = 2.54 centimeters.

Divide centimeters by 2.54. 30 cm is 11.8 in (a standard ruler), 50 cm is 19.7 in and 100 cm is 39.4 in.

1 centimeter = 0.39370079 inches. Formula: in = cm × 0.39370079 (or cm ÷ 2.54)

1 centimeter in all length units
Millimeters (mm)10
Meters (m)0.01
Kilometers (km)0.00001
Inches (in)0.39370079
Feet (ft)0.032808399
Yards (yd)0.010936133
Miles (mi)0.0000062137
Nautical miles (nmi)0.0000053996
Gaj (gaj)0.010936133

How to convert centimeters to inches

in = cm × 0.39370079

Multiply the number of centimeters by 0.39370079. To convert inches back to centimeters, multiply by 2.54, or divide by 0.39370079.

Example: 5 centimeters × 0.39370079 = 1.9685039 inches.

Centimeters to Inches conversion table

CentimetersInches
1 cm0.39370079 in
2 cm0.78740157 in
3 cm1.1811024 in
4 cm1.5748031 in
5 cm1.9685039 in
6 cm2.3622047 in
7 cm2.7559055 in
8 cm3.1496063 in
9 cm3.5433071 in
10 cm3.9370079 in
12 cm4.7244094 in
15 cm5.9055118 in
20 cm7.8740157 in
25 cm9.8425197 in
30 cm11.811024 in
40 cm15.748031 in
50 cm19.685039 in
60 cm23.622047 in
70 cm27.559055 in
75 cm29.527559 in
80 cm31.496063 in
90 cm35.433071 in
100 cm39.370079 in
200 cm78.740157 in
250 cm98.425197 in
500 cm196.85039 in
1,000 cm393.70079 in
InchesCentimeters
1 in2.54 cm
2 in5.08 cm
3 in7.62 cm
4 in10.16 cm
5 in12.7 cm
6 in15.24 cm
7 in17.78 cm
8 in20.32 cm
9 in22.86 cm
10 in25.4 cm
12 in30.48 cm
15 in38.1 cm
20 in50.8 cm
25 in63.5 cm
30 in76.2 cm
40 in101.6 cm
50 in127 cm
60 in152.4 cm
70 in177.8 cm
75 in190.5 cm
80 in203.2 cm
90 in228.6 cm
100 in254 cm
200 in508 cm
250 in635 cm
500 in1,270 cm
1,000 in2,540 cm

About the centimeter and the inch

The centimeter (centimetre) is one hundredth of a meter. Body height, clothing measurements, furniture and school rulers are all usually given in centimeters outside the US.

The inch is exactly 25.4 mm. It survives in screen sizes, tyre and wheel sizes, pipe diameters and paper sizes even in metric countries.

Frequently asked questions

How many inches are in a centimeter?

There are 0.39370079 inches in 1 centimeter. For any number of centimeters, multiply by 0.39370079.

How many centimeters are in a inch?

1 inch = 2.54 centimeters. To convert inches to centimeters, multiply by 2.54 or divide by 0.39370079.

What is 5 centimeters in inches?

5 centimeters = 1.9685039 inches (5 × 0.39370079).

Is the cm to inch conversion exact?

Yes. The 1959 international yard and pound agreement defined the yard as exactly 0.9144 meters, which makes the inch exactly 25.4 mm, the foot exactly 0.3048 m and the mile exactly 1,609.344 m. Every factor on this page follows from those definitions, so it is exact rather than approximate. Results are rounded to eight significant digits for display.

Related calculators

Last updated . Formulas are shown on the page and checked against the worked example.

Conversion factors are exact international definitions where one exists and standard reference values elsewhere. Results are rounded to 8 significant digits.