Centimeters to Inches converter

Convert centimeters (cm) to inches (in) — results update instantly as you type.

Centimeters to Inches

To0.393701

1 cm = 0.39370079 in

How to convert Centimeters to Inches

Length is the most everyday measurement there is — yet the world still splits between the metric system (millimeters, centimeters, meters, kilometers) and the imperial system (inches, feet, yards, miles). This converter bridges both, plus nautical miles used in aviation and shipping.

Every length unit is defined as an exact multiple of the meter, the SI base unit. An inch is exactly 0.0254 meters and a mile is exactly 1609.344 meters, so converting between any two units is a single multiplication — no approximations involved.

Formula

cm × 0.3937007874 = in

Multiply your centimeters value by 0.3937007874 to get inches. For the reverse, divide by the same factor.

Centimeters to Inches conversion table

CentimetersInches
1 cm0.393701 in
2 cm0.787402 in
5 cm1.968504 in
10 cm3.937008 in
25 cm9.84252 in
100 cm39.370079 in

Common use cases

  • Converting body height between centimeters and feet/inches
  • Road trip distances between kilometers and miles
  • Screen sizes, fabric, and DIY measurements in inches vs centimeters
  • Marine and aviation distances in nautical miles

Frequently asked questions

Exactly 2.54 centimeters. The inch has been defined as precisely 25.4 millimeters since the international yard and pound agreement of 1959.