CM to Inches Converter

Convert between centimeters and inches instantly using the exact conversion factor of 1 inch = 2.54 cm.

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Result

Enter a value above to see the conversion.

The exact conversion factor is:

1 inch = 2.54 cm

To convert cm to inches: divide by 2.54. To convert inches to cm: multiply by 2.54.

Type a value into the input field (it starts in centimeters).
The result below shows the converted value instantly.
Use the swap button to flip the input to inches (or back to cm) — your value carries over, converted.

How many centimeters are in an inch?

Exactly 2.54 centimeters make one inch. This is an internationally defined exact constant, not an approximation.

How do I convert inches to centimeters?

Multiply the number of inches by 2.54. For example, 10 inches × 2.54 = 25.4 cm.

How do I convert centimeters to inches?

Divide the number of centimeters by 2.54. For example, 100 cm ÷ 2.54 ≈ 39.37 inches.

Last updated: September 29, 2026