The inch is defined as exactly 25.4 millimetres, so every result is precise. It is the quickest way to read US product specifications, TV and monitor sizes, clothing measurements or body height in the metric units used almost everywhere else. Height and width in both systems make comparison shopping much easier.
Calculator
Formula used
centimeters = inches × 2.54 · inches = centimeters ÷ 2.54
How to use the Inches to Cm Converter
- Type a length in the inches box.
- Read the result in the centimeters box.
- Type in the centimeters box to convert the other way.
- Use the table for common sizes such as 1, 12 or 72 inches.
About this tool
The Inches to Cm Converter is built for speed and accuracy: every calculation runs in your browser, so your data never leaves your device and the result updates as you type. It works equally well on a phone, a tablet or a desktop, and it is free to use as many times as you like.
Common use cases
- Converting a TV or monitor diagonal to metric.
- Reading US clothing and shoe measurements.
- Checking height requirements that are quoted in inches.
- Translating DIY plans from imperial to metric.
Tips for the best result
- Use the latest figures you have - even a small change in rate or term can shift the outcome by hundreds.
- For annual figures, divide by 12 to get a monthly number you can compare with the result.
- Bookmark this page and revisit the calculation as the inputs change.
Frequently asked questions
How many cm is 1 inch?
Exactly 2.54 cm. Multiply inches by 2.54 for centimeters, or divide centimeters by 2.54 for inches.
Should I round the result?
For everyday use two decimal places are plenty. Keep more digits only when the value feeds another calculation.
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