CloudCalcAppCentimeters to Inches Converter
Convert centimeters to inches accurately. 1 inch is exactly 2.54 centimeters, so divide centimeters by 2.54 to get inches. Enter a length in centimeters below to get the result in decimal inches.
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Conversion Result
Enter a value to see the conversion.
How to Convert Centimeters to Inches
inches = centimeters ÷ 2.54
- 1Divide by 2.54Divide the number of centimeters by 2.54, since 1 inch is exactly 2.54 centimeters.
- 2Do the mathFor 10 cm: 10 ÷ 2.54 ≈ 3.937 (rounded to 4 decimal places).
- 3Read the result10 cm is about 3.937 inches.
Centimeters to Inches Conversion Chart
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 | 0.3937 |
| 2.54 | 1 |
| 5 | 1.9685 |
| 10 | 3.937 |
| 15 | 5.9055 |
| 20 | 7.874 |
| 25 | 9.8425 |
| 30 | 11.811 |
| 40 | 15.748 |
| 50 | 19.685 |
| 60 | 23.622 |
| 75 | 29.5276 |
| 90 | 35.4331 |
| 100 | 39.3701 |
| 150 | 59.0551 |
| 200 | 78.7402 |
Unit Definitions
Centimeters (cm)
A centimeter is a metric unit of length equal to 0.01 meter. Exactly 2.54 centimeters make 1 inch.
Common uses
- Body height and clothing measurements
- Furniture and room dimensions
- Craft and sewing measurements
- Product and package sizes
Inches (in)
An inch is a unit of length in the imperial and US customary systems, equal to exactly 2.54 centimeters. One centimeter is approximately 0.3937 inch.
Common uses
- Screen and display sizes
- Woodworking and construction
- Paper sizes and printing
- Product dimensions
Converting Centimeters to Inches and Fractions
1 inch is exactly 2.54 centimeters, so the calculator divides your centimeters by 2.54 and returns decimal inches. Rulers marked in inches, though, show fractions - halves, quarters, eighths, sixteenths - so it helps to know how the two relate.
A few centimeter values land exactly on a ruler mark: 0.635 cm = 1/4 in, 1.27 cm = 1/2 in, 1.905 cm = 3/4 in, and 2.54 cm = 1 in.
Most measurements do not. 10 cm ÷ 2.54 ≈ 3.937 in, which on a ruler marked in sixteenths is about 3 15/16 in to the nearest 1/16 inch - a rounded reading, not an exact value.
The calculator itself gives decimal inches only; the fraction is just a way to pick the nearest ruler mark.
Practical Examples
Here are some real-world examples of centimeters to inches conversions:
- FurnitureA 100 cm shelf or table is about 39.3701 inches long.
- CraftA 30 cm ruler length is about 11.811 inches.
- Room MeasurementsA 200 cm wall or door height is about 78.7402 inches.
- HeightA body measurement of 150 cm is about 59.0551 inches.
Frequently Asked Questions
How do you convert centimeters to inches?
Divide the length in centimeters by 2.54, because 1 inch is exactly 2.54 centimeters. For example, 30 ÷ 2.54 ≈ 11.811 inches (rounded to 4 decimal places).
How many inches are in 1 centimeter?
1 centimeter is exactly 50/127 of an inch, a decimal that never terminates, which is approximately 0.3937 inch. The 0.3937 figure is rounded.
Can I convert clothing measurements from centimeters to inches?
You can convert a body or garment length you have measured yourself by dividing by 2.54 - for example, a 90 cm waist is about 35.4331 inches. Clothing size labels such as S/M/L or numeric sizes are not a unit conversion, though - they vary by brand, country, and fit.
Is 2.54 cm exactly 1 inch?
Yes. The international inch has been defined as exactly 2.54 centimeters since 1959, so this is an exact definition, not a rounded approximation.
How many inches is 10 cm?
10 cm is about 3.937 inches, since 10 ÷ 2.54 ≈ 3.937 (rounded to 4 decimal places).
How do I convert centimeters to fractional inches?
First divide by 2.54 to get decimal inches, then round the fractional part to the ruler increment you need. For example, 10 cm ≈ 3.937 in, which is about 3 15/16 in to the nearest 1/16 inch - a rounded ruler reading, not an exact value. The calculator above returns decimal inches.
Displayed results are rounded to a maximum of 4 decimal places for readability (extended only in the rare case a nonzero value would otherwise display as “0”), and whole-number results are shown without unnecessary decimals. The conversion factor and formula above are the exact relationship - only the calculator's displayed output is rounded.
Need a different unit? Length Converter supports many other unit conversions.