Inches to Centimeters Conversion Chart
Complete reference chart converting inches (in) to centimeters (cm). Covers ¼ inch to 72 inches with the exact formula.
For a custom value not in this chart, use the interactive Inch to Centimeter converter.
| Inch (in) | Centimeter (cm) |
|---|---|
| ¼ in | 0.635 cm |
| ½ in | 1.27 cm |
| 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 |
| 11 in | 27.94 cm |
| 12 in | 30.48 cm |
| 18 in | 45.72 cm |
| 24 in | 60.96 cm |
| 30 in | 76.2 cm |
| 36 in | 91.44 cm |
| 48 in | 121.92 cm |
| 60 in | 152.4 cm |
| 72 in | 182.88 cm |
Conversion Formula
cm = inches × 2.54 (exact, by international definition) Example: 12 inches × 2.54 = 30.48 cm (exactly) 1 foot = 12 inches = 30.48 cm
Frequently Asked Questions
How many cm is 6 inches?
6 inches equals exactly 15.24 centimeters. The calculation: 6 × 2.54 = 15.24 cm. This conversion is exact — the inch is defined as exactly 2.54 cm by international agreement.
How many cm is 12 inches (1 foot)?
12 inches (1 foot) equals exactly 30.48 centimeters. 2 feet = 60.96 cm, 6 feet = 182.88 cm, and so on.
Is 2.54 cm per inch exact?
Yes. Since 1959, one inch has been defined as exactly 2.54 centimeters by international agreement. All inch-to-cm conversions are therefore exact, with no rounding or approximation at the definition level.
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Use the interactive converter →All conversion values are calculated using internationally recognized conversion factors. Results are provided for general informational purposes — verify critical values independently. Read our full disclaimer.