Everyday units

Centimeters to Inches (cm to in) Converter

Convert centimeters to decimal inches using 2.54 cm per inch, with examples for measurements and dimensions.

How it works

inches = centimeters ÷ 2.54

The international inch is exactly 2.54 centimeters. Dividing a centimeter measurement by 2.54 produces decimal inches.

How to use this tool

Enter the length in centimeters. Select Convert and read the decimal-inch result. Convert each dimension separately when measuring a rectangle.

Worked example

30 cm ÷ 2.54 ≈ 11.811023622 in. A 2.54 cm length is exactly 1 inch by definition.

Limits of this tool

The output is decimal inches, not a ruler fraction such as 1/8 inch. This page converts length rather than area.

Good to know

Results are computed with 64-bit floating-point numbers. Very large or tiny values can lose precision; the display rounds only after calculation. Non-finite results are rejected.

Everything runs on your device. No inputs are sent to a server.

All length units · Reverse conversion

Centimeters to Inches (cm to in) Converter

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