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1 Inches in Centimetres
1 in equals 2.54 cm. Convert any other value below — it updates as you type.
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1 in = 2.54 cm
The answer
2.54
Centimetres
Formula: centimetres = inches × 2.54 · Full converter: Inches to Centimetres →
| Inches | Centimetres |
|---|---|
| 1 in | 2.54 cm |
| 5 in | 12.7 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 24 in | 60.96 cm |
| 36 in | 91.44 cm |
About this tool
The conversion uses the formula centimetres = inches × 2.54, so 1 in works out to exactly 2.54 cm (shown to 10 significant digits).
Need a different value, or the reverse direction? The full Inches to Centimetres converter handles any number, and the table above covers the values people ask for most.
How to use it
- The answer is at the top: 1 in = 2.54 cm.
- To convert a different value, type it in the box — the result updates live.
Frequently asked questions
What is 1 Inches in Centimetres?
1 in = 2.54 cm.
How do I convert Inches to Centimetres?
Use the formula: centimetres = inches × 2.54.
Is the result exact?
The factor is an exact international definition; the display rounds only beyond 10 significant digits.