Unit converter
Inches to Centimeters Converter
Convert inches to centimeters using the exact definition: one inch equals 2.54 centimeters. Use it for screen sizes, print work, clothing, and any project where you need to move between imperial and metric length.
Formula
cm = in × 2.54
Example: 12 in × 2.54 = 30.48 cm.
Inches to Centimeters conversion chart
| Inches (in) | Centimeters (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 |
| 8 in | 20.32 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 15 in | 38.1 cm |
| 18 in | 45.72 cm |
| 20 in | 50.8 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 |
Frequently asked questions
- How many centimeters are in an inch?
- Exactly 2.54 centimeters. This has been the international definition since 1959.
- How do I convert inches to cm quickly?
- Multiply by 2.5 for a fast estimate, then add roughly 2% for the exact value. For 10 in: 25 cm + 0.5 gives ~25.4 cm.
- Is 1 inch equal to 25 mm?
- Very close but not exact. One inch is 25.4 mm, so 25 mm is about 0.984 in.
Reverse
Centimeters → InchesRelated conversions