Inches to CM Conversion Calculator
The Inches to CM Conversion Calculator converts measurements from inches (in) to centimeters (cm). Inches are commonly used in the United States and in product dimensions, while centimeters are part of the metric system used in many countries.
Quick Answer: Inches to CM Formula
Centimeters = Inches Γ 2.54
For example, 10 inches = 25.4 cm.
How Inches to Centimeters Conversion Works
The relationship is exact: 1 inch = 2.54 centimeters. To convert inches to centimeters, multiply the measurement in inches by 2.54.
How to Use the Calculator
- Enter the measurement in inches.
- Click Convert.
- Read the result in centimeters.
- Round the answer only when appropriate for the measurement.
Worked Examples
1 inch: 1 Γ 2.54 = 2.54 cm.
5 inches: 5 Γ 2.54 = 12.7 cm.
10 inches: 10 Γ 2.54 = 25.4 cm.
20 inches: 20 Γ 2.54 = 50.8 cm.
Inches to CM Conversion Table
| Inches | Centimeters |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 15 in | 38.1 cm |
| 20 in | 50.8 cm |
| 24 in | 60.96 cm |
| 30 in | 76.2 cm |
| 40 in | 101.6 cm |
Where Inches to CM Conversion Is Useful
- Comparing product dimensions listed in different unit systems.
- Converting screen, furniture, clothing, or package measurements.
- Working with plans or specifications that mix metric and imperial units.
- Checking dimensions when shopping from international websites.
Common Mistakes
Use 2.54 for inches to centimeters. The reverse conversion is different: centimeters are divided by 2.54 to obtain inches. Do not confuse inches with feet; 12 inches make 1 foot.