Convert Inches to Centimeters

Enter the length in inches below to get the value converted to centimeters.

Results in Centimeters:
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1 in = 2.54 cm

How to Convert Inches to Centimeters

Tape measures can be used to measure units of length, and a calculator can be used to convert to another unit

Convert inches to centimeters with this simple formula:

centimeters = inches × 2.54

Converting an inch length measurement to a centimeter measurement involves multiplying the length by the conversion ratio to find the result. One inch is equal to 2.54 centimeters, so to convert simply multiply by 2.54.

For example, here's how to convert 5 inches to centimeters using the formula above.
5" = (5 × 2.54) = 12.7 cm

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. Learn more about length and find more length measurement conversion calculators. Inches are an imperial measurement and can be abbreviated as in, for example 1 in. Centimeters are a metric measurement and can be abbreviated as cm, for example 1 cm. Learn more about the metric system, including the common unit prefixes and how to convert between metric units.

Internationally the centimeter is actually spelled centimetre and it's equal to 10 millimeters, .01 meters, or .393701 inches. Metric rulers have 30 cm and they are the larger measurement. A standard pencil is just about 1cm thick, and can be used to get a rough idea of the size of a centimeter.

A pencil is just about 1cm thick and is a good reference point for a centimeter's actual size

The actual length of an inch has varied because of variances of the length of a foot. Throughout history it has been equal to 1/12 - 1/16 of a foot, but there are now exactly 12 inches in a foot. In 1959 the world agreed to the exact length of the national yard, .9144 meters. As such a foot is equal to .3048 meters and an inch is equal to 2.54 centimeters.

A quarter is .955" in diameter, which is just smaller than 1"

The standard ruler has 12", and metric combinations have 30 cm. Inches are also often measured using tape measures which commonly come in lengths from 6' - 35'. Other types of measuring devices include scales, calipers, measuring wheels, micrometers, yardsticks, and even lasers.

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. If you need a ruler you can also download and print our free printable rulers which include both imperial and metric measurements.

inches and centimeters are units used to measure length
Convert Centimeters to Inches

Inch Measurements and Equivalent Centimeter Conversions

Common inch values converted to the equivalent centimeter value
Inches Centimeters
1" 2.54 cm
2" 5.08 cm
3" 7.62 cm
4" 10.16 cm
5" 12.7 cm
6" 15.24 cm
7" 17.78 cm
8" 20.32 cm
9" 22.86 cm
10" 25.4 cm
11" 27.94 cm
12" 30.48 cm
13" 33.02 cm
14" 35.56 cm
15" 38.1 cm
16" 40.64 cm
17" 43.18 cm
18" 45.72 cm
19" 48.26 cm
20" 50.8 cm
21" 53.34 cm
22" 55.88 cm
23" 58.42 cm
24" 60.96 cm
25" 63.5 cm
26" 66.04 cm
27" 68.58 cm
28" 71.12 cm
29" 73.66 cm
30" 76.2 cm
31" 78.74 cm
32" 81.28 cm
33" 83.82 cm
34" 86.36 cm
35" 88.9 cm
36" 91.44 cm
37" 93.98 cm
38" 96.52 cm
39" 99.06 cm
40" 101.6 cm

More Inch Length Conversions

US Customary & Imperial Units
Convert to Miles
1" is equal to 1.5783E-5 miles
Convert to Yards
1" is equal to 0.027778 yards
Convert to Feet
1" is equal to 0.083333 feet
SI Units
Convert to Kilometers
1" is equal to 2.54E-5 kilometers
Convert to Meters
1" is equal to 0.0254 meters
Convert to Millimeters
1" is equal to 25.4 millimeters
Convert to Micrometers
1" is equal to 25,400 micrometers
Convert to Nanometers
1" is equal to 25,400,000 nanometers