1 Centimeter to Inches

1 cm ≈ 0.3937 in

Closest fraction: 2564″(0.39063 in — differs by less than 1%)

Calculation: in = 1 cm × 0.393701 ≈ 0.3937 in

Centimeter to Inch Converter

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How long is 1 cm?

1 cm is comparable to the width of a fingernail or a small button.

1 cm on the inch scale

cm00.511.52in00.10.20.30.40.50.60.7

1 cm = 0.3937 in

How to Convert Centimeter to Inch

1 centimeter = 0.393701 inches exact

Inch = Centimeter × 0.393701

Example: 1 cm × 0.393701 = 0.3937 in

Reverse Conversion

To convert inches back to centimeters:

  • Remember, 1 inch equals 2.54 centimeters.
  • To convert 0.3937 in to cm, multiply 0.3937 x 2.54, resulting in 1 cm.

exact This conversion factor is exact by international definition.

1 cm equals 0.3937 inches — about the width of a pencil eraser or a large pea. The centimeter is 1/100 of a meter in the SI system.

1 cm is also equal to:

About these units

Centimeter: Metric unit equal to one hundredth (1/100) of a meter.

Inch: Imperial/US customary unit standardized as exactly 25.4 millimeters since 1959.

Frequently Asked Questions

How much is 1 centimeter in inches?

1 centimeter equals 0.3937 inches. This is calculated by multiplying 1 by the conversion factor 0.393701.

What does 1 centimeter look like in inches?

1 centimeter (0.3937 inches) is about the width of a fingernail or a small button.

How do you calculate 1 centimeter to inches?

Multiply 1 by the conversion factor 0.393701. The calculation is 1 × 0.393701 = 0.3937 inches. This factor is defined by international measurement standards.

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1 centimeter = 0.393701 inches
1 centimeter = 0.393701 inches — conversion chart

Nearby Conversions

2 centimeters0.7874 inches 3 centimeters1.181 inches 4 centimeters1.575 inches 5 centimeters1.969 inches 6 centimeters2.362 inches 7 centimeters2.756 inches 8 centimeters3.15 inches 9 centimeters3.543 inches 10 centimeters3.937 inches 11 centimeters4.331 inches

For general conversions between centimeters and inches, see the centimeters to inches converter.

Also convert Centimeters to:

Conversion factors verified against NIST, BIPM, ISO 80000-3 1 inch = 2.54 cm by international agreement (1959). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.