Convert Inches to Centimeters
One inch equals 2.54 centimeters. Type any value to convert inches to centimeters instantly — with a full reference table below.
Convert Inches to Centimeters
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How to convert Inches to Centimeters
To convert inches to centimeters, multiply by 2.54. One inch equals 2.54 cm, and one centimeter equals 0.393701 in.
- Take the value in inches — for example 7.5 in.
- Multiply by 2.54 (the number of centimeters in one inch).
- 7.5 × 2.54 = 19.05 cm.
Quick mental estimate: Multiply the number of inches by 2.54 — that is exact.
Inches to Centimeters conversion table
| Inches | Centimeters |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 4 in | 10.16 cm |
| 5 in | 12.7 cm |
| 6 in | 15.24 cm |
| 7 in | 17.78 cm |
| 8 in | 20.32 cm |
| 9 in | 22.86 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 15 in | 38.1 cm |
| 20 in | 50.8 cm |
| 25 in | 63.5 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| Centimeters | Inches |
|---|---|
| 1 cm | 0.393701 in |
| 2 cm | 0.787402 in |
| 3 cm | 1.181102 in |
| 4 cm | 1.574803 in |
| 5 cm | 1.968504 in |
| 6 cm | 2.362205 in |
| 7 cm | 2.755906 in |
| 8 cm | 3.149606 in |
| 9 cm | 3.543307 in |
| 10 cm | 3.937008 in |
| 12 cm | 4.724409 in |
| 15 cm | 5.905512 in |
| 20 cm | 7.874016 in |
| 25 cm | 9.84252 in |
| 50 cm | 19.68504 in |
| 100 cm | 39.37008 in |
About converting Inches to Centimeters
Inches (in) and Centimeters (cm) are both units of length. The exact factor is 1 in = 2.54 cm, so multiply by 2.54 to go from inches to centimeters (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Centimeters to Inches converter, or the full unit converter for every unit at once.
Real-world length in inches and centimeters
| Example | Inches | Centimeters |
|---|---|---|
| A credit card's width (ISO/IEC 7810) | 3.370079 in | 8.56 cm |
| The long side of A4 paper (ISO 216) | 11.69291 in | 29.7 cm |
| A US standard door (80 in tall) | 80 in | 203.2 cm |
| A football pitch (FIFA recommended length) | 4,133.858 in | 10,500 cm |
| Mount Everest (2020 survey height) | 348,380.3 in | 884,886 cm |
“≈” marks typical values; the rest are defined or measured figures.
The units
Exactly 25.4 mm (1/12 of a foot).
Used for: US and UK screen sizes, tyres, timber and body measurements.
One hundredth of a metre.
Used for: Body height in most countries, clothing and everyday measuring.
Every length factor here is exact: the inch has been defined as exactly 25.4 mm since the 1959 International Yard and Pound Agreement.