1 inch (in) = 2.54 centimeters (cm). To convert, multiply by 2.54: cm = in × 2.54. For example, 5 in = 12.7 cm.
cm = in × 2.54
Inches to centimeters table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 4 | 10.16 |
| 5 | 12.7 |
| 10 | 25.4 |
| 20 | 50.8 |
| 25 | 63.5 |
| 50 | 127 |
| 100 | 254 |
| 250 | 635 |
| 500 | 1,270 |
| 1,000 | 2,540 |
The two units
Inch (in). Exactly 25.4 millimeters, by the 1959 international definition.
Centimeter (cm). One hundredth of a meter.
Because both units are defined in terms of the same base unit, the factor 2.54 is exact, not a rounded measurement.
Convert inches to other units
- Inches to meters — 1 in = 0.0254 m
- Inches to kilometers — 1 in = 0.0000254 km
- Inches to millimeters — 1 in = 25.4 mm
- Inches to micrometers — 1 in = 25,400 µm
- Inches to nanometers — 1 in = 25,400,000 nm
- Inches to miles — 1 in = 0.0000157828 mi
- Inches to yards — 1 in = 0.0277777778 yd
- Inches to feet — 1 in = 0.0833333333 ft
- Inches to nautical miles — 1 in = 0.0000137149 nmi
Convert other units to centimeters
Questions people ask
- How many centimeters are in a inch?
- 2.54, exactly.
- How do you convert inches to centimeters?
- cm = in × 2.54. It is the same as dividing by 0.3937007874.
- How do you convert centimeters back to inches?
- in = cm ÷ 2.54. See centimeters to inches.
Results use the legal definitions of each unit and are checked against the Pint unit library. Display rounds to 10 significant digits. All unit conversions · More tools
Legal entity
Devansh Yadav
Moradabad, Uttar Pradesh
Governing law: Courts at Moradabad, Uttar Pradesh
Phone: +91 8433475698
Legal: legal@analyzeit.in