Inches to Centimeters
Convert inches to centimeters instantly, with a reference table.
Inches to Centimeters at a glance
Inches to Centimeters is a free online converter you can use right now to convert inches to centimeters instantly, with a reference table โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Unit Conversions
Inches to Centimeters conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| 500 in | 1,270 cm |
| 1000 in | 2,540 cm |
About Inches to Centimeters
Convert inches to centimeters instantly, with a reference table of common values. The factor is exact: 1 in = 2.54 cm.
This is the direction most people outside the US need: a product listed in inches, a piece of furniture from a US retailer, or a tool size given in inches when your tape measure is metric.
The inch began as the width of a thumb and was standardised in 1959, when the international yard and pound agreement defined it as exactly 2.54 centimetres. That figure is a definition, not a rounded measurement. It remains standard in the United States and persists worldwide for screen and display sizes, pipe and tyre diameters, and print dimensions regardless of the local system. A standard sheet of US Letter paper is 8.5 inches wide, and a typical laptop screen is 13 to 15 inches measured diagonally.
Worked through with real numbers: 1 in is 2.54 cm, 10 in is 25.4 cm, 100 in is 254 cm.
As for the other side of the conversion: A credit card is 8.56 cm wide, and an adult of 5 feet 9 inches is about 175 cm tall.
Length conversions between metric and imperial are exact by definition rather than approximate. The 1959 international yard and pound agreement fixed the inch at precisely 2.54 cm and the yard at 0.9144 m, so these factors are definitions and carry no measurement error.
How to use Inches to Centimeters
- Enter the number of inches you want to convert.
- The equivalent in centimeters appears instantly โ there is no button to press.
- Check the reference table for common Inches to Centimeters values.
Frequently asked questions
How do I convert inches to centimeters?
Multiply your inches figure by 2.54 to get centimeters โ or type a value above and read the answer straight off.
How many centimeters are in one inche?
1 in = 2.54 cm.
When would I need to convert inches to centimeters?
This is the direction most people outside the US need: a product listed in inches, a piece of furniture from a US retailer, or a tool size given in inches when your tape measure is metric.
What is a inche, exactly?
The inch began as the width of a thumb and was standardised in 1959, when the international yard and pound agreement defined it as exactly 2.54 centimetres. That figure is a definition, not a rounded measurement. A standard sheet of US Letter paper is 8.5 inches wide, and a typical laptop screen is 13 to 15 inches measured diagonally.
Where is the centimeter actually used?
It is the everyday metric unit for anything hand-sized: body measurements, clothing sizes, paper and furniture dimensions across most of the world. A credit card is 8.56 cm wide, and an adult of 5 feet 9 inches is about 175 cm tall.
Is there anything tricky about length conversions?
Length conversions between metric and imperial are exact by definition rather than approximate. The 1959 international yard and pound agreement fixed the inch at precisely 2.54 cm and the yard at 0.9144 m, so these factors are definitions and carry no measurement error.
Is this converter accurate?
Yes. It uses the exact standard factor of 1 in = 2.54 cm, and the conversion runs in your browser so nothing is uploaded.