CM to Inches Converter
One centimeter equals 0.393701 inches. Use the free converter below to change any centimeter value to inches instantly just type a number and the answer appears as you type, with no sign-up and no ads in the way.
Quick answer
To convert centimeters to inches, divide the number of centimeters by 2.54 (or multiply by 0.393701). For example, 10 cm ÷ 2.54 = 3.94 inches. 1 cm = 0.3937 inches, and 1 inch = 2.54 cm exactly.
How to convert cm to inches
Enter your value in centimeters in the box above.
The result in inches appears instantly no button needed.
Use the dropdowns to switch to other length units if you like.
To do it by hand, use the formula: inches = centimeters ÷ 2.54.
CM to inches formula
The conversion is exact because one inch is defined as 2.54 centimeters. So:
- inches = cm ÷ 2.54
- cm = inches × 2.54
That means 25 cm ÷ 2.54 = 9.84 inches, and 12 inches × 2.54 = 30.48 cm.
CM to inches conversion chart
Common centimeter-to-inch values (rounded to two decimals):
- 1 cm = 0.39 in
- 5 cm = 1.97 in
- 10 cm = 3.94 in
- 15 cm = 5.91 in
- 20 cm = 7.87 in
- 30 cm = 11.81 in
- 50 cm = 19.69 in
- 100 cm = 39.37 in
Popular cm to inches conversions
People most often convert height from centimeters. In feet and inches:
- 160 cm = 62.99 in (5 ft 3 in)
- 165 cm = 64.96 in (5 ft 5 in)
- 170 cm = 66.93 in (5 ft 7 in)
- 175 cm = 68.90 in (5 ft 9 in)
- 180 cm = 70.87 in (5 ft 11 in)
- 185 cm = 72.83 in (6 ft 1 in)
Understanding centimeters and inches
The centimeter is a metric unit of length equal to one-hundredth of a meter, used across most of the world for everyday measurements. The inch is an imperial unit, defined as exactly 2.54 centimeters, and is used mainly in the United States, the UK and Canada for things like screen sizes, paper, and a person’s height. Because the two systems sit side by side in daily life, converting centimeters to inches (and back) is one of the most common length conversions people need.
Why use this cm to inches converter
- Instant the answer updates as you type, with no button and no waiting.
- Accurate based on the exact 1 inch = 2.54 cm definition.
- Free no sign-up, no limits, no clutter.
- Flexible switch between mm, cm, m, feet, inches, miles and more with the dropdowns.
- Works everywhere any browser on desktop or mobile, nothing to install.
Frequently asked questions (FAQ's)
How many inches is 1 cm?
1 centimeter equals 0.393701 inches.
How do I convert cm to inches manually?
Divide the number of centimeters by 2.54. For example, 50 cm ÷ 2.54 = 19.69 inches.
Is the cm to inches conversion exact?
Yes. One inch is defined as exactly 2.54 centimeters, so the conversion is exact.
How many cm are in an inch?
There are exactly 2.54 centimeters in one inch.
What is 10 cm in inches?
10 cm equals 3.94 inches.
What is 170 cm in feet and inches?
170 cm is about 5 feet 7 inches (66.93 inches).
What is 175 cm in inches?
175 cm equals 68.90 inches, or about 5 feet 9 inches.
What is 30 cm in inches?
30 cm equals 11.81 inches.