About Cm to Inches
Heights, screen sizes, paper, timber and running distances are all quoted in whichever system the industry grew up with, so this conversion comes up constantly.
One centimetre is 0.394 inches, and one inche is 2.54 centimetres. The converter handles decimals and large numbers, and the table underneath lists the values people look up most.
How it works
Every centimetres to inches conversion uses one rule: in = cm ร 0.39370079.
- Take the measurement in centimetres.
- Multiply by 0.393700787 โ that is how many inches fit in one centimetre.
- The answer is in inches (in).
The factor is exact (1 inch is defined as 2.54 cm), so the only rounding happens when the result is displayed.
Need the other direction? Use the length converter.
Examples
Three conversions worked through in full:
- 1 cm ร 0.393700787 = 0.394 in
- 30 cm ร 0.393700787 = 11.81 in
- 180 cm ร 0.393700787 = 70.87 in
The table under the calculator lists the values people look up most, from 1 cm upwards.
Cm to Inches: frequently asked questions
- How do I convert centimetres to inches?
- Divide centimetres by 2.54 to get inches. 30 cm รท 2.54 โ 11.81 in.
- How do I convert inches back to centimetres?
- Use the swap button, or apply the reverse factor: in ร 2.54 = cm.
- Is the conversion exact?
- Yes. 1 inch is defined as exactly 2.54 cm.