
Convert inches to cm
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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 in | 0.0254 cm |
0.1 in | 0.254 cm |
1 in | 2.54 cm |
2 in | 5.08 cm |
3 in | 7.62 cm |
5 in | 12.7 cm |
10 in | 25.4 cm |
20 in | 50.8 cm |
50 in | 127 cm |
100 in | 254 cm |
1000 in | 2540 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
Popular Length Unit Conversions
Convert Inch to Other Length Units
Convert centimetro to inches - Conversion
of Measurement Units
››Convert centímetro to inch
››More information from the unit converter
How many centimetro in 1 inches? The answer is 2.54.
We assume you are converting between centímetro and inch.
You can view more details on each measurement unit:
centimetro or inches
The SI base unit for length is the metre.
1 metre is equal to 100 centimetro, or 39.370078740157 inches.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between centimetros and inches.
Type in your own numbers in the form to convert the units!
››Quick conversion chart of centimetro to inches
1 centimetro to inches = 0.3937 inches
5 centimetro to inches = 1.9685 inches
10 centimetro to inches = 3.93701 inches
20 centimetro to inches = 7.87402 inches
30 centimetro to inches = 11.81102 inches
40 centimetro to inches = 15.74803 inches
50 centimetro to inches = 19.68504 inches
75 centimetro to inches = 29.52756 inches
100 centimetro to inches = 39.37008 inches
››Want other units?
You can do the reverse unit conversion from inches to centimetro, or enter any two units below:
››Common length conversions
centimetro to spat
centimetro to chain
centimetro to yottameter
centimetro to verst
centimetro to milimetro
centimetro to mile
centimetro to span
centimetro to faden
centimetro to wah
centimetro to light-month
››Definition: Centimetro
El centímetro es una unidad de longitud. Es el segundo submúltiplo del metro y equivale a la centésima parte de él. Su abreviatura es cm.
››Definition: Inch
An inch is the name of a unit of length in a number of different systems, including Imperial units, and United States customary units. There are 36 inches in a yard and 12 inches in a foot. The inch is usually the universal unit of measurement in the United States, and is widely used in the United Kingdom, and Canada, despite the introduction of metric to the latter two in the 1960s and 1970s, respectively. The inch is still commonly used informally, although somewhat less, in other Commonwealth nations such as Australia; an example being the long standing tradition of measuring the height of newborn children in inches rather than centimetres. The international inch is defined to be equal to 25.4 millimeters.
››Metric conversions and more
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!
Convert inches to cm

Go ahead and convert your own value of in to cm in the converter below.
If you wish you can reverse the conversion by using the converter for cm to inches
For other conversions in length, use the length conversion tool.
Facts about inch (in)
An inch (plural: inches; symbol or abbreviation: in or, sometimes, ″ - a double prime) is the name of a unit of length in a number of different systems, including English units, Imperial units, and United States customary units. Its size can vary from system to system. There are 36 inches in a yard and 12 inches in a foot. A corresponding unit of area is the square inch and a corresponding unit of volume is the cubic inch. See all conversions for inches here.
Facts about centimetre (cm)
A centimetre (American spelling centimeter, symbol cm), sometimes called "chim", is a unit of length that is equal to one hundredth of a metre, the current SI base unit of length. See all conversions for cm here.
General information about in to cm
Other conversion pairs in length
Centimeters and Inches Converter
How to convert cm to inches
There are 2.54cm in 1 inch. To convert cm to inches, divide your cm figure by 2.54 or multiply it by 0.3937.
inches = cm ÷ 2.54
As an example, let's say you have a piece of wood measuring 50cm and you want to convert it into inches. To get your answer, divide your cm figure by 2.54. So, 50 ÷ 2.54 = 19.685 inches.
cm to inches chart
cm to inches | cm to inches |
---|---|
1 cm = 0.3937 in | 11 cm = 4.3307 in |
2 cm = 0.7874 in | 12 cm = 4.7244 in |
3 cm = 1.1811 in | 13 cm = 5.1181 in |
4 cm = 1.5748 in | 14 cm = 5.5118 in |
5 cm = 1.9685 in | 15 cm = 5.9055 in |
6 cm = 2.3622 in | 16 cm = 6.2992 in |
7 cm = 2.7559 in | 17 cm = 6.6929 in |
8 cm = 3.1496 in | 18 cm = 7.0866 in |
9 cm = 3.5433 in | 19 cm = 7.4803 in |
10 cm = 3.937 in | 20 cm = 7.874 in |
cm to inches | cm to inches |
---|---|
25 cm = 9.8425 in | 95 cm = 37.4016 in |
30 cm = 11.811 in | 100 cm = 39.3701 in |
35 cm = 13.7795 in | 105 cm = 41.3386 in |
40 cm = 15.748 in | 110 cm = 43.3071 in |
45 cm = 17.7165 in | 115 cm = 45.2756 in |
50 cm = 19.685 in | 120 cm = 47.2441 in |
55 cm = 21.6535 in | 125 cm = 49.2126 in |
60 cm = 23.622 in | 130 cm = 51.1811 in |
65 cm = 25.5906 in | 135 cm = 53.1496 in |
70 cm = 27.5591 in | 140 cm = 55.1181 in |
75 cm = 29.5276 in | 145 cm = 57.0866 in |
80 cm = 31.4961 in | 150 cm = 59.0551 in |
85 cm = 33.4646 in | 155 cm = 61.0236 in |
90 cm = 35.4331 in | 160 cm = 62.9921 in |
Note that conversions in the above charts are rounded to a maximum of 4 decimal places.
How many inches are in 30 cm?
30cm is equal to 11.811 inches. You can calculate this by dividing 30 by 2.54, as there are 2.54cm in an inch.
How many inches are in 40 cm?
40cm is equal to 15.748 inches. This calculation can be achieved by dividing the 40cm figure by 2.54, or multiplying it by 0.3937.
Metric and imperial conversions
The Centimeter (British spelling 'centimetre') is a metric unit of length, distance or height. By contrast, the inch is an imperial measurement, still commonly used in the United States and United Kingdom.
The conversion tool on this page can help you convert between centimeters and inches. Should you wish to include feet in your calculation, give the cm, feet and inches converter a try. As an alternative, if you'd like to convert between millimeters and inches, you can find a mm to inches converter here.
Inches cm em
Convert 40 cm to inches - Conversion of
Measurement Units
››Convert centimetre to inch
››More information from the unit converter
How many cm in 1 inches? The answer is 2.54.
We assume you are converting between centimetre and inch.
You can view more details on each measurement unit:
cm or inches
The SI base unit for length is the metre.
1 metre is equal to 100 cm, or 39.370078740157 inches.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between centimetres and inches.
Type in your own numbers in the form to convert the units!
››Quick conversion chart of cm to inches
1 cm to inches = 0.3937 inches
5 cm to inches = 1.9685 inches
10 cm to inches = 3.93701 inches
20 cm to inches = 7.87402 inches
30 cm to inches = 11.81102 inches
40 cm to inches = 15.74803 inches
50 cm to inches = 19.68504 inches
75 cm to inches = 29.52756 inches
100 cm to inches = 39.37008 inches
››Want other units?
You can do the reverse unit conversion from inches to cm, or enter any two units below:
››Common length conversions
cm to mark twain
cm to barleycorn
cm to faden
cm to light-month
cm to light-minute
cm to kind
cm to kerat
cm to gry
cm to astronomical unit
cm to quadrant
››Definition: Centimeter
A centimetre (American spelling centimeter, symbol cm) is a unit of length that is equal to one hundreth of a metre, the current SI base unit of length. A centimetre is part of a metric system. It is the base unit in the centimetre-gram-second system of units. A corresponding unit of area is the square centimetre. A corresponding unit of volume is the cubic centimetre.
The centimetre is a now a non-standard factor, in that factors of 103 are often preferred. However, it is practical unit of length for many everyday measurements. A centimetre is approximately the width of the fingernail of an adult person.
››Definition: Inch
An inch is the name of a unit of length in a number of different systems, including Imperial units, and United States customary units. There are 36 inches in a yard and 12 inches in a foot. The inch is usually the universal unit of measurement in the United States, and is widely used in the United Kingdom, and Canada, despite the introduction of metric to the latter two in the 1960s and 1970s, respectively. The inch is still commonly used informally, although somewhat less, in other Commonwealth nations such as Australia; an example being the long standing tradition of measuring the height of newborn children in inches rather than centimetres. The international inch is defined to be equal to 25.4 millimeters.
››Metric conversions and more
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!
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