Cm to Inch Converter
To convert centimeters to inches, divide the length value by 2.54.
Interactive cm ↔ inch Converter
Formula: in = cm ÷ 2.54 · cm = in × 2.54
Quick Conversion Formula
inches = centimeters ÷ 2.54
Common Cm to Inch Conversions
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 | 0.39 |
| 5 | 1.97 |
| 10 | 3.94 |
| 30 | 11.81 |
| 100 | 39.37 |
Real-World Examples
- A 30 cm ruler is about 11.8 inches long.
- 10 cm equals roughly the width of a smartphone.
- 100 cm equals 1 meter, or about 39 inches.
Common Mistakes
A common mistake is multiplying by 2.54 instead of dividing when converting cm to inches.
FAQ
Is 1 cm equal to 1 inch? No. 1 inch equals 2.54 cm.
Why is 2.54 used? It is the internationally agreed conversion factor.