CM to Inches Converter
Convert centimeters to inches instantly, and inches back to cm. Based on the exact 1 inch = 2.54 cm definition.
Independently verified for accuracy
Calculator by Toolsloft ↗- Result
- 0.393701 Inches (in)
- Conversion
- 1 Centimeters (cm) = 0.393701 Inches (in)
Convert centimeters to inches, and inches back to centimeters with the swap button. This is the quick one for screen sizes, paper, luggage limits, and anything where the measurement is in cm but you need inches. Type the number and read the answer, no rounding surprises.
How this is calculated
The inch is defined as exactly 2.54 centimeters by international agreement, so centimeters are divided by 2.54 to get inches and inches are multiplied by 2.54 to get centimeters. Results are shown to six decimal places so small measurements stay accurate.
How to use
- Enter the number of centimeters.
- Keep the direction on cm to inches, or press Swap units for inches to cm.
- Read the result in inches.
Examples
- A4 paper width:
21 cm = 8.267717 in - One inch check:
2.54 cm = 1 in - Inches to cm:
12 in = 30.48 cm
FAQ
- How do I convert cm to inches?
- Divide the number of centimeters by 2.54. For example, 30 cm divided by 2.54 is about 11.81 inches.
- How many centimeters are in an inch?
- Exactly 2.54 centimeters. That value is the official definition of the inch, so the conversion is precise rather than an estimate.