Convert cm to inches (2024)

Convert cm to inches (1)

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Please provide values below to convert centimeter [cm] to inch [in], or vice versa.


Definition: A centimeter (symbol: cm) is a unit of length in the International System of Units (SI), the current form of the metric system. It is defined as 1/100 meters.

History/origin: A centimeter is based on the SI unit meter, and as the prefix "centi" indicates, is equal to one hundredth of a meter. Metric prefixes range from factors of 10-18 to 1018 based on a decimal system, with the base (in this case the meter) having no prefix and having a factor of 1. Learning some of the more commonly used metric prefixes, such as kilo-, mega-, giga-, tera-, centi-, milli-, micro-, and nano-, can be helpful for quickly navigating metric units.

Current use: The centimeter, like the meter, is used in all sorts of applications worldwide (in countries that have undergone metrication) in instances where a smaller denomination of the meter is required. Height is commonly measured in centimeters outside of countries like the United States.


Definition: An inch (symbol: in) is a unit of length in the imperial and US customary systems of measurement. An inch was defined to be equivalent to exactly 25.4 millimeters in 1959. There are 12 inches in a foot and 36 inches in a yard.

History/origin: The term "inch" was derived from the Latin unit "uncia" which equated to "one-twelfth" of a Roman foot.

There have been a number of different standards for the inch in the past, with the current definition being based on the international yard. One of the earliest definitions of the inch was based on barleycorns, where an inch was equal to the length of three grains of dry, round barley placed end-to-end. Another version of the inch is also believed to have been derived from the width of a human thumb, where the length was obtained from averaging the width of three thumbs: a small, a medium, and a large one.

Current use: The inch is mostly used in the United States, Canada, and the United Kingdom. It is also sometimes used in Japan (as well as other countries) in relation to electronic parts, like the size of display screens.

Centimeter to Inch Conversion Table

Centimeter [cm]Inch [in]
0.01 cm0.0039370079 in
0.1 cm0.0393700787 in
1 cm0.3937007874 in
2 cm0.7874015748 in
3 cm1.1811023622 in
5 cm1.968503937 in
10 cm3.937007874 in
20 cm7.874015748 in
50 cm19.6850393701 in
100 cm39.3700787402 in
1000 cm393.7007874016 in

How to Convert Centimeter to Inch

1 cm = 0.3937007874 in
1 in = 2.54 cm

Example: convert 15 cm to in:
15 cm = 15 × 0.3937007874 in = 5.905511811 in

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Convert cm to inches (2024)


How do you convert centimeters to inches? ›

To convert centimeters into inches, multiply the given centimeter value by 0.393701 inches. For examples 20 cm to inches is equal to 7.87402 inches.

How many inches is 1 cm in inches? ›

1 cm = 0.393701 inches.

Is there 10 cm in 1 inch? ›

Inches and centimeters are measuring units of length. One Inch is equal to 2.54 centimeters, and there are 39.37 inches in a meter. Centimeters are smaller than Inches. Use this calculator to convert inches to cm and vice versa.

How big is 2cm? ›

Centimeters to Inches Conversion Chart
2 cm0.7874 inch
3 cm1.1811 inches
4 cm1.5748 inches
5 cm1.9685 inches
11 more rows

How many cm makes 1 inch? ›

1 inch is equal to 2.54 centimeters. It means that to convert inches to centimeters multiply the given figure by 2.54.

How many cm in an inch exactly? ›

Inches to Centimeters Chart
1 in2.54 cm
2 in5.08 cm
3 in7.62 cm
4 in10.16 cm
11 more rows

What does 20 cm mean in inches? ›

Answer: 20 centimeters equals 7.87402 inches.

To convert centimeters to inches we have to divide that number by 2.54. Centimeter is a unit of length in the metric system while inches is part of the US customary system of measurement.

Is 2 cm the same as 1 inch? ›

In short, 1 centimetre = 0.01 meter = 10 millimeter = 0.3937 inches. The relationship between inch and cm is that one inch is exactly equal to 2.54 cm in the metric system. In other words, the distance in centimetres is equal to the distance in inches times 2.54 cm.

Is 3 cm the same as 1 inch? ›

A common conversion is 1 in = 2.54 cm. Thus, 3 cm is greater than 1 inch. In fact, 3 cm is approximately 1.18 in, which is indeed bigger than 1 inch.

What does 10 cm look like in inches? ›

To convert centimeters to inches, you need to perform the calculation of the distance in centimeters multiplied by the conversion factor of 0.393701. 10 centimeters x 0.393701 = 3.93701 inches.

How big is 5 centimeters? ›

5 centimeters is equal to 50 millimeters (mm), 1.97 inches, just slightly under 2 inches. Knowing how long five centimeters (cm) is important for educational and useful reasons. This unit is part of the metric system used worldwide for most scientific and everyday measures.

How big is 7 centimeters? ›

Therefore, 7 centimeters is approximately 2.76 inches.

What does a 2 cm tumor look like? ›

Understanding tumor size measurement

1 cm is about the width of a pea. 2 cm is about the size of a peanut. 3 cm is about the size of a grape. 4 cm is about the size of a walnut.

What does 2.5 cm look like in inches? ›

1 centimeter is the same length as 0.393701 inches. To find out what 2.5 cm would be in inches, you simply multiply 0.393701 by 2.5. After you've multiplied, your answer should be 0.984252. This tells you that 2.5 cm is the same as 0.984252 inches.

What does 3cm look like? ›

Three centimeters translates to roughly the size of a banana slice.

What is 30 by 40 cm in inches? ›

30 x 40 cm is 11 3/4 x 15 3/4 inches.

How many centimeters makes a foot? ›

One Foot is equal to 30.48 centimeters.

What does 1 cm look like? ›

The easiest objects to use are a standard pencil, pen, or highlighter. The width of a pencil is close to 1 cm. Other options include the length of a staple, the width of five CDs or DVDs stacked together, the thickness of a standard notepad, and the radius of a U.S. penny.

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