Convert inches to cm (2024)

Convert inches to cm (1)

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


Inch

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

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.

Inch to Centimeter Conversion Table

Inch [in]Centimeter [cm]
0.01 in0.0254 cm
0.1 in0.254 cm
1 in2.54 cm
2 in5.08 cm
3 in7.62 cm
5 in12.7 cm
10 in25.4 cm
20 in50.8 cm
50 in127 cm
100 in254 cm
1000 in2540 cm

How to Convert Inch to Centimeter

1 in = 2.54 cm
1 cm = 0.3937007874 in

Example: convert 15 in to cm:
15 in = 15 × 2.54 cm = 38.1 cm

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Convert inches to cm (2024)

FAQs

How do you convert inches to centimeters? ›

The formula to convert the length or height given in inches into its equivalent centimeter is given by; The value of 1 inch is approximately equal to 2.54 centimeters. To convert inches to the centimeter values, multiply the given inch value by 2.54 cm.

Is 1 inch 4 cm? ›

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 centimeters is 12 inches? ›

1 inch is approximately equal to 2.54 centimeters. By the unitary method, 12 inches = 30.48 centimeters, but it shows only 30 cm on the ruler.

Is 2 cm the same as 1 inch? ›

The relationship between inch and cm is that one inch is exactly equal to 2.54 cm in the metric system.

Is 2.5 cm equal to 1 inch? ›

Answer and Explanation:

This tells you that 2.5 cm is the same as 0.984252 inches. Notice that 0.984252 is very close to 1! Actually, to get to a full inch, you'd need to have 2.54 centimeters.

How big is 10 cm? ›

Answer: 10 cms is equal to 3.93700787 inches.

How do you convert cm to inches? ›

There are 2.54 centimeters in 1 inch. Using the conversion number of 0.3937, the conversion formula for converting x centimeters to inches is this: x centimeters * 0.3937 = inches.

How deep is 30 cm? ›

Answer: 30 cm equals 11.811 inches.

You can use this calculator to perform metric computations.

How big is 1 cm visually? ›

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.

How big is six centimeters? ›

Common food items that can be used to show tumor size in cm include: a pea (1 cm), a peanut (2 cm), a grape (3 cm), a walnut (4 cm), a lime (5 cm or 2 inches), an egg (6 cm), a peach (7 cm), and a grapefruit (10 cm or 4 inches).

What is the formula for centimeters to inches? ›

There are 2.54 centimeters in 1 inch. Using the conversion number of 0.3937, the conversion formula for converting x centimeters to inches is this: x centimeters * 0.3937 = inches.

What is 1cm to 1 inch? ›

One centimeter is equal to 1/100 of a meter (m). One centimeter is equal to 10 millimeters (mm). One centimeter is eqaul to 1/2.54 of an inch (in).

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