Centimeter to Inch Converter (cm to in)
Instantly convert between centimeters and inches using this precise tool. Essential for design, engineering, and academic applications. 100% free with no registration required.
Conversion Formula
1 centimeter (cm) = 0.3937 inches (in)
To convert centimeters to inches:
inches = centimeters × 0.3937007874
Example: 10 cm × 0.3937007874 = 3.937 in
Centimeter to Inch Conversion Table
| Centimeters (cm) | Inches (in) | |
|---|---|---|
| 1 cm | 0.3937 in | |
| 5 cm | 1.9685 in | |
| 10 cm | 3.9370 in | |
| 20 cm | 7.8740 in | |
| 30 cm | 11.8110 in | |
| 50 cm | 19.6850 in | |
| 100 cm | 39.3701 in | |
| 150 cm | 59.0551 in | |
| 200 cm | 78.7402 in | |
| 300 cm | 118.1102 in | |
| 500 cm | 196.8504 in |
| Unit | Symbol | Centimeters |
|---|---|---|
| Millimeter | mm | 0.1 cm |
| Centimeter | cm | 1 cm |
| Meter | m | 100 cm |
| Inch | in | 2.54 cm |
| Foot | ft | 30.48 cm |
| Yard | yd | 91.44 cm |
| Mile | mi | 160,934.4 cm |
Frequently Asked Questions
Why would I use centimeters instead of inches?
Centimeters are part of the metric system, widely used globally for precision and simplicity in scientific and everyday measurements.
How precise is centimeter to inch conversion?
The conversion factor (1 cm = 0.3937007874 in) is precise, but rounding to 0.3937 is common for practical use.
What’s the history of the inch?
The inch originated from the Roman “uncia” (1/12) and was based on the thumb’s width, standardized in 1959 to 2.54 cm.
Are centimeters and inches used worldwide?
Centimeters are used globally in metric countries, while inches are common in the US, UK, and other imperial-system countries.