centimeters to inches Converter
Type a value in centimeters and get the answer in inches instantly — or convert the other way. The conversion uses the exact relationship 1 centimeters = 0.393701 inches, the same formula used in textbooks and engineering references.
Centimeters are part of the metric system used almost everywhere in the world; inches are the imperial unit still standard in the United States, and common in the UK and Canada for height and screen sizes. Because 1 inch is officially defined as exactly 2.54 cm, this conversion is precise, not estimated.
How to use
- Type your value into the centimeters box — the inches result updates as you type.
- To go the other direction, type into the inches box instead and read the centimeters result.
- Copy the result with one tap, or scan the reference table below for common values.
Frequently asked questions
How do you convert centimeters to inches?
Multiply the number of centimeters by 0.393701. For example, 10 centimeters = 3.93701 inches. The converter above does this for you and shows more decimal places than you will ever need.
How many inches are in one centimeters?
Exactly 0.393701 inches. This is a fixed definition, not an approximation, so the conversion is exact at any scale.
Is this converter accurate for professional use?
Yes — it uses full double-precision arithmetic and the official centimeters-to-inches factor, so results are reliable for schoolwork, cooking, fitness, travel and technical work.
Can I convert inches back to centimeters?
Yes. The converter is two-way: just type in the second box and the first box updates instantly with the reverse conversion.