How many centimeters in one inch
How many centimeters in one inch
How many cm in 1 inch?
An inch equals 2.54 centimeters because 1 times 2.54 (the conversion factor) = 2.54
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Definition of Inch
Definition of Centimeter
How to convert 1 inch to centimeters
To calculate a value in inches to the corresponding value in centimeters, just multiply the quantity in inches by 2.54 (the conversion factor).
Here is the formula:
Supose you want to convert an inch into centimeters. In this case you will have:
Value in centimeters = 1 × 2.54 = 2.54
Inches to Centimeters Conversion Chart
Note: Fractions are rounded to the nearest 8th fraction. Values are rounded to 4 significant figures.
| inches to centimeters of | ||
|---|---|---|
| 1 inch | = | 2.54 centimeters |
| 2 inches | = | 5.08 centimeters |
| 4 inches | = | 10.16 centimeters |
| 5 inches | = | 12.7 centimeters |
| 8 inches | = | 20.32 centimeters |
| 1 /16 inch | = | 0.1588 centimeter |
| 1 /8 inch | = | 0.3175 centimeter |
| 1 /4 inch | = | 0.635 centimeter |
| 1 /3 inch | = | 0.8467 centimeter |
| 1 /2 inch | = | 1.27 centimeters |
| 2 /3 inch | = | 1.693 centimeters |
| 3 /4 inch | = | 1.905 centimeters |
| 1 1 /16 inches | = | 2.699 centimeters |
| 1 1 /8 inches | = | 2.858 centimeters |
| 1 1 /4 inches | = | 3.175 centimeters |
| 1 1 /3 inches | = | 3.387 centimeters |
| 1 1 /2 inches | = | 3.81 centimeters |
| 1 2 /3 inches | = | 4.233 centimeters |
| 1 3 /4 inches | = | 4.445 centimeters |
| 2 1 /16 inches | = | 5.239 centimeters |
| 2 1 /8 inches | = | 5.398 centimeters |
| 2 1 /4 inches | = | 5.715 centimeters |
| 2 1 /3 inches | = | 5.927 centimeters |
Using this converter you can get answers to questions like:
Inches to Centimeters Converter
Use this inches to centimeters converter to easily convert between Inches and Centimeters (in to cm).
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According to the International System of Units there are exactly 2.54 centimeters in one inch. Both the centimeter and the inch are used to measure length, but while the former is used in most countries in the world, the inch is used in a couple of countries that still follow the imperial system of measurements, which also includes the foot, yard, mile, etc. Both units are of comparable magnitude, so they are used to measure similarly-sized objects or where similar precision is required.
The symbol of centimeters is «cm», while for inch it is «in», or sometimes double quotes, e.g. 10″ means 10 inches. You can use our in to cm converter to verify how many centimeters fit correspond to one inch.
The inch is an old unit, used for the first time sometime in the 7 century in Europe, while officially defined in 1324. Different standards were used in different places, but nowadays it is defined in terms of meters and centimeters. Currently inches are mostly used in the US, the UK, Canada, and Japan. Since these countries originated a lot of technological innovations, the inch finds application in electronics – display screen sizes are predominantly expressed in inches.
The centimeter is derived from the base measurement unit established by the International Organization for Standardization – the meter. Its prefix ‘centi’ indicates that it is 1/100 of a meter. Therefore, the cm can be defined as being equal to the path length that light travels in vacuum in 1/29,979,245,800 of a second. A centimeter is equal to precisely 0.3937 of an inch, or 3887/9873 as a fraction. Centimeters are used when relatively good precision is required: in construction, engineering, architecture, and for certain scientific purposes. One will often themselves using an inch to cm converter if they engage in these disciplines on a worldwide scope.
Most rulers have both cm and in, featured on opposite sides.
Converting inches to centimeters is easy, as all you need to do is multiply by 2.54, or use our converter above. See the examples and the conversion table below for some common in to cm conversions.
Inches to cm conversion example
Sample task: convert 12 inches to centimeters. Solution:
Formula:
in * 2.54 = cm
Calculation:
12 in * 2.54 = 30.48 cm
End result:
12 in is equal to 30.48 cm
| in | cm |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 4 in | 10.16 cm |
| 5 in | 12.70 cm |
| 6 in | 15.24 cm |
| 7 in | 17.78 cm |
| 8 in | 20.32 cm |
| 9 in | 22.86 cm |
| 10 in | 25.40 cm |
| 20 in | 50.80 cm |
| 30 in | 76.20 cm |
| 40 in | 101.60 cm |
| 50 in | 127 cm |
| 60 in | 152.40 cm |
| 70 in | 177.80 cm |
| 80 in | 203.20 cm |
| 90 in | 228.60 cm |
| 100 in | 254 cm |
| 200 in | 508 cm |
| 300 in | 762 cm |
| 400 in | 1,016 cm |
| 500 in | 1,270 cm |
| 600 in | 1,524 cm |
| 700 in | 1,778 cm |
| 800 in | 2,032 cm |
| 900 in | 2,286 cm |
| 1,000 in | 2,540 cm |
You may want to print and use this table offline if our online inches to centimeters converter is not accessible to you at any point in time.
[2] International Organization for Standardization (1993). ISO Standards Handbook: Quantities and units (3rd edition). Geneva: ISO. ISBN 92-67-10185-4.
Inches to Centimeters Conversion Calculator
Enter the length below to convert inches to cm using decimal or fractional inches.
How to Convert Inches to Centimeters
To convert inches to centimeters, use an easy formula and multiply the length by the conversion ratio.
Since one inch is equal to 2.54 centimeters, this is the inches to cm formula to convert:
The length in centimeters is equal to the inches multiplied by 2.54.
How Many Centimeters Are in an Inch?
There are 2.54 centimeters in an inch, which is why we use this value in the formula above.
Our inch fraction calculator can add inches and centimeters together, and it also automatically converts the results to US customary, imperial, and SI metric values.
Inches and centimeters are both units used to measure length. Keep reading to learn more about each unit of measure.
Inches
An inch is a unit of linear length measure equal to 1 /12 of a foot or 1 /36 of a yard. Because the international yard is legally defined to be equal to exactly 0.9144 meters, one inch is equal to 2.54 centimeters. [1]
The inch is a US customary and imperial unit of length. Inches can be abbreviated as in; for example, 1 inch can be written as 1 in.
Inches can also be denoted using the ″ symbol, otherwise known as a double-prime. Often a double-quote («) is used instead of a double-prime for convenience. A double-prime is commonly used to express 1 in as 1″.
Centimeters
One centimeter is equal to one-hundredth (1/100) of a meter, which is defined as the distance light travels in a vacuum in a 1 /299,792,458 second time interval.
Metric rulers typically have 30 cm, which are represented by 30 large tick marks. To get a rough idea of the actual length of a centimeter, a standard pencil is just about 1 cm thick.
We recommend using a ruler or tape measure for measuring length, which can be found at a local retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you get the correct type for your needs.
Need a ruler? Try our free downloadable and printable rulers, which include both imperial and metric measurements.
How many centimeters in 1 inch?
An inch equals 2.54 centimeters because 1 times 2.54 (the conversion factor) = 2.54
All In One Unit Converter
Find other conversions here:
Definition of Inch
Definition of Centimeter
How to convert 1 inch to centimeters
To calculate a value in inches to the corresponding value in centimeters, just multiply the quantity in inches by 2.54 (the conversion factor).
Here is the formula:
Supose you want to convert an inch into centimeters. In this case you will have:
Value in centimeters = 1 × 2.54 = 2.54
Inches to Centimeters Conversion Chart
Note: Fractions are rounded to the nearest 8th fraction. Values are rounded to 4 significant figures.
| inches to centimeters of | ||
|---|---|---|
| 1 inch | = | 2.54 centimeters |
| 2 inches | = | 5.08 centimeters |
| 4 inches | = | 10.16 centimeters |
| 5 inches | = | 12.7 centimeters |
| 8 inches | = | 20.32 centimeters |
| 1 /16 inch | = | 0.1588 centimeter |
| 1 /8 inch | = | 0.3175 centimeter |
| 1 /4 inch | = | 0.635 centimeter |
| 1 /3 inch | = | 0.8467 centimeter |
| 1 /2 inch | = | 1.27 centimeters |
| 2 /3 inch | = | 1.693 centimeters |
| 3 /4 inch | = | 1.905 centimeters |
| 1 1 /16 inches | = | 2.699 centimeters |
| 1 1 /8 inches | = | 2.858 centimeters |
| 1 1 /4 inches | = | 3.175 centimeters |
| 1 1 /3 inches | = | 3.387 centimeters |
| 1 1 /2 inches | = | 3.81 centimeters |
| 1 2 /3 inches | = | 4.233 centimeters |
| 1 3 /4 inches | = | 4.445 centimeters |
| 2 1 /16 inches | = | 5.239 centimeters |
| 2 1 /8 inches | = | 5.398 centimeters |
| 2 1 /4 inches | = | 5.715 centimeters |
| 2 1 /3 inches | = | 5.927 centimeters |
Using this converter you can get answers to questions like:
How many cm in one inch?
An inch equals 2.54 centimeters because one times 2.54 (the conversion factor) = 2.54
All In One Unit Converter
Find other conversions here:
Definition of Inch
Definition of Centimeter
How to convert 1 inch to centimeters
To calculate a value in inches to the corresponding value in centimeters, just multiply the quantity in inches by 2.54 (the conversion factor).
Here is the formula:
Supose you want to convert an inch into centimeters. In this case you will have:
Value in centimeters = 1 × 2.54 = 2.54
Inches to Centimeters Conversion Chart
Note: Fractions are rounded to the nearest 8th fraction. Values are rounded to 4 significant figures.
| inches to centimeters of | ||
|---|---|---|
| 1 inch | = | 2.54 centimeters |
| 2 inches | = | 5.08 centimeters |
| 4 inches | = | 10.16 centimeters |
| 5 inches | = | 12.7 centimeters |
| 8 inches | = | 20.32 centimeters |
| 1 /16 inch | = | 0.1588 centimeter |
| 1 /8 inch | = | 0.3175 centimeter |
| 1 /4 inch | = | 0.635 centimeter |
| 1 /3 inch | = | 0.8467 centimeter |
| 1 /2 inch | = | 1.27 centimeters |
| 2 /3 inch | = | 1.693 centimeters |
| 3 /4 inch | = | 1.905 centimeters |
| 1 1 /16 inches | = | 2.699 centimeters |
| 1 1 /8 inches | = | 2.858 centimeters |
| 1 1 /4 inches | = | 3.175 centimeters |
| 1 1 /3 inches | = | 3.387 centimeters |
| 1 1 /2 inches | = | 3.81 centimeters |
| 1 2 /3 inches | = | 4.233 centimeters |
| 1 3 /4 inches | = | 4.445 centimeters |
| 2 1 /16 inches | = | 5.239 centimeters |
| 2 1 /8 inches | = | 5.398 centimeters |
| 2 1 /4 inches | = | 5.715 centimeters |
| 2 1 /3 inches | = | 5.927 centimeters |
Using this converter you can get answers to questions like: