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Convert inches to cm, cm to inches - Length Conversion

Use these online calculators to convert between inches (in) and centimeters (cm). These Length conversion calculators provide a quick and easy way to convert:

  • inches to cm
  • cm to inches

Conversion Calculators

Enter your value in one of the conversion calculators below to convert inches to cm or convert cm to inches.

Convert inches to cm

Convert cm to inches

How to convert inches to cm: Use the conversion calculator on the left titled "Convert inches to cm". Enter a value in the inches field and click on the "Calculate cm" button. Your answer will appear in the cm field.

How to convert cm to inches: Use the conversion calculator on the right titled "Convert cm to inches". Enter a value in the cm field and click on the "Calculate inches" button. Your answer will appear in the inches field.

Conversion Definitions

The following is a list of definitions relating to conversions between inches and centimeters.

What is an inch (in)?

An inch is a unit of length in both US Customary Units as well as the Imperial System. The symbol for inch is in or ". There are 12 inches in a foot or 36 inches in a yard.

What is a centimeter (cm)?

A centimeter is a unit of length in the Metric System. The symbol for centimeter is cm. There are 100 centimeters in a meter. The International spelling is centimetre.

How many inches in a centimeter?

There are 0.393700787 inches in a centimeter.

How many centimeters in an inch?

There are 2.54 centimeters in an inch.

Understanding the Length Units

This table provides a summary of the Length units within their respective measurement systems.

Unit Symbol Measurement System Description
inches in or " US Customary Units (and Imperial)  
feet ft or ' US Customary Units (and Imperial) 1 foot = 12 inches
yards yd US Customary Units (and Imperial) 1 yard = 3 feet
miles mi US Customary Units (and Imperial) 1 mile = 1760 yards or 5280 feet
millimeter mm Metric System 1000 mm = 1 m
centimeter cm Metric System 100 cm = 1 m, 1 cm = 10 mm
decimeter dm Metric System 10 dm = 1 m, 1 dm = 10 cm
meter m Metric System 1 m = 1000 mm, 100 cm, 10 dm
kilometer km Metric System 1 km = 1000 m