How to convert Inches to Centimeters
The conversion is a single multiplication: 1 in = 2.54 cm. To convert inches to centimeters, multiply by 2.54. To go back, multiply centimeters by 0.393701 (or divide by 2.54). These factors are exact by definition.
Examples
- 1 in = 2.54 cm
- 12 in = 30.48 cm
Inches to Centimeters conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 4 | 10.16 |
| 5 | 12.7 |
| 10 | 25.4 |
| 20 | 50.8 |
| 25 | 63.5 |
| 50 | 127 |
| 100 | 254 |
Frequently asked questions
- How do I convert Centimeters back to Inches?
- Use the Centimeters to Inches converter, or just swap the units on the full unit converter — it shows every unit in the category at once.
- Are these conversion factors exact?
- Yes. The English units have been defined in metric terms since 1959, so the factors used here are exact by definition, not rounded approximations. Displayed results are rounded only for readability.
- Can I convert other units too?
- The unit converter also handles length, weight, volume, temperature, area, speed, pressure, energy, power, torque, and fuel economy — each with every unit shown side by side.