📏 Centimeters to Inches Converter
Convert centimeters (cm) to inches (in) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 centimeter (cm) = 0.39370079 inches (in). Formula: in = cm × 0.39370079.
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Centimeters to Inches Converter inputs
Result
Centimeters to Inches conversion table
| Centimeters (cm) | Inches (in) |
|---|---|
| 0.1 cm | 0.039370079 in |
| 0.5 cm | 0.19685039 in |
| 1 cm | 0.39370079 in |
| 2 cm | 0.78740157 in |
| 3 cm | 1.1811024 in |
| 5 cm | 1.9685039 in |
| 10 cm | 3.9370079 in |
| 20 cm | 7.8740157 in |
| 25 cm | 9.8425197 in |
| 50 cm | 19.685039 in |
| 100 cm | 39.370079 in |
| 1,000 cm | 393.70079 in |
Other length conversions
cm to mmcm to mcm to kmcm to incm to ftcm to ydcm to micm to nmi
How to convert centimeters to inches
Multiply the number of centimeters by 0.39370079 to get inches: in = cm × 0.39370079.
Example: 5 cm = 1.9685039 in.
The centimeter (cm) and the inch (in) are both units of length. Need the opposite direction? Use the in to cm converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many inches are in a centimeter?
1 centimeter = 0.39370079 inches.
How do I convert centimeters to inches?
Use the formula in = cm × 0.39370079. For example, 5 cm = 1.9685039 in.
How do I convert inches back to centimeters?
1 inch = 2.54 centimeters. Use the in to cm converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.