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How many cm in an inch?
1 inch = 2.54 cm
There are 2.54 centimeters in an inch.
How to work it out
1 × 2.54 = 2.54
Formula: cm = in × 2.54
Other ways to write it
- Rounded
- 2.5 cm
- In meters
- 0.0254 m
- In millimeters
- 25.4 mm
- In feet
- 0.0833 ft
- In yards
- 0.0278 yd
Inches to centimeters
Inches to Centimeters (in to cm) → Centimeters to Inches (cm to in) →
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About the Unit Converter
The unit converter changes values between metric and imperial units for length, weight, temperature, digital data, area, and volume.
How to use it
- 1 Choose a category, such as length or temperature.
- 2 Pick the unit to convert from and the unit to convert to.
- 3 Type a value to see the converted result straight away.
Frequently asked questions
How many cm in an inch?
There are 2.54 centimeters in an inch. Multiply by 2.54: there are 2.54 centimeters in one inch.
How do I convert Celsius to Fahrenheit?
Multiply the Celsius value by 9/5 and add 32. For example, 20 °C × 9/5 + 32 = 68 °F.
How many centimetres are in an inch?
One inch is exactly 2.54 centimetres, and one foot is 30.48 centimetres.
Is a kilobyte 1,000 or 1,024 bytes?
In SI units a kilobyte (kB) is 1,000 bytes. A kibibyte (KiB) is 1,024 bytes. Some operating systems still use "KB" to mean 1,024 bytes.