Convert inches to cm instantly. 1 inch = 2.54 centimeters.
cm = inches × 2.54
One inch is defined as exactly 2.54 centimeters. To convert inches to cm, simply multiply by 2.54.
| Inches | Centimeters |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 6 in | 15.24 cm |
| 12 in | 30.48 cm |
| 18 in | 45.72 cm |
| 24 in | 60.96 cm |
| 36 in | 91.44 cm |
| 48 in | 121.92 cm |
| 60 in | 152.40 cm |
| 72 in | 182.88 cm |
There are exactly 2.54 centimeters in one inch. This is an internationally defined standard established in 1959.
To convert inches to centimeters, multiply the number of inches by 2.54. For example, 5 inches × 2.54 = 12.7 cm.
5 feet 11 inches = 71 inches total. 71 × 2.54 = 180.34 cm. So 5'11" is approximately 180 cm.
Simply multiply by 2.54, just like with whole numbers. For example, 2.5 inches = 2.5 × 2.54 = 6.35 cm.
In 1959, the international inch was defined as exactly 25.4 millimeters (2.54 cm) by an agreement between the United States, United Kingdom, Australia, Canada, New Zealand, and South Africa. Before 1959, the exact definitions varied slightly between countries.
For more length conversions, see the full Length Converter.