Centimetres ↔ inches
Length conversion: cm ↔ in (1 in = 2.54 cm). Units from header when set.
Results
Enter data and click Calculate.
Frequently asked questions
- When should I use centimetres instead of inches?
- Centimetres in EU clothing sizes and metric furniture. Inches in the US for TVs, monitors, wrenches and trade sizes (1 in = 2.54 cm).
- Can the result be negative?
- Not for an object length — only positive values make sense.
- How precise is the result?
- 1 in = 2.54 cm exactly (international definition). One of the few pairs with zero definitional error.
- What is the most common input mistake?
- Treating a “65-inch” screen diagonal as 65 cm, or the reverse.