Loona Calculators
Convert inches to centimetres instantly — type any value and the result appears as you type. Below you will find the exact formula, a in to cm conversion table and a worked example.
Formula: Centimetres = inches × 2.54. One inch is defined as exactly 2.54 centimetres, so this multiplication is exact.
Question: How many centimetres is 65 in — a height of 5 feet 5 inches?
Steps: Take the value in inches: 65 in. Apply the formula: Centimetres = inches × 2. That gives 65 → 165.1 cm (rounded to four decimal places).
Result: 65 in = 165.1 cm.
| Inches (in) | Centimetres (cm) |
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 6 in | 15.24 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 24 in | 60.96 cm |
| 36 in | 91.44 cm |
| 50 in | 127 cm |
| 60 in | 152.4 cm |
| 72 in | 182.88 cm |
Need a value that is not in the table — or the reverse direction? Use the converter at the top of this page or the cm to inches converter, or the full Unit Converter for every unit in one place.
Multiply the value in inches by 2.54: in × 2.54 = cm. For example, 10 in × 2.54 = 25.4 cm. The converter above does this instantly.
Exactly 2.54 cm (to four decimal places). The full relationship: Centimetres = inches × 2.
72 inches = 182.88 cm, because each inch is exactly 2.54 cm.
Use the reverse conversion — our cm to inches converter does it instantly. For a quick check, divide by the same factor instead of multiplying.
TV and monitor sizes are quoted worldwide by their diagonal in inches — a 55-inch TV has a 139.7 cm diagonal.
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