Centimeters to inches
1 centimeter in inches
1 cm = 0.3937 in
in = cm × 0.3937007874
To convert centimeters to inches, multiply by 0.3937007874. The table below gives the values people look up most often, and the converter works for any number.
Centimeters to inches table
| Centimeters | Inches |
|---|---|
| 1 cm | 0.3937 |
| 2 cm | 0.7874 |
| 3 cm | 1.181102 |
| 4 cm | 1.574803 |
| 5 cm | 1.968504 |
| 10 cm | 3.937008 |
| 15 cm | 5.905512 |
| 20 cm | 7.874016 |
| 25 cm | 9.84252 |
| 30 cm | 11.81102 |
| 40 cm | 15.74803 |
| 50 cm | 19.68504 |
| 75 cm | 29.52756 |
| 100 cm | 39.37008 |
| 250 cm | 98.4252 |
| 500 cm | 196.8504 |
| 1,000 cm | 393.7008 |
How the conversion works
The relationship is in = cm × 0.3937007874. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.
Common questions
- How many inches are in one centimeter?
- One centimeter equals 0.3937 inches. in = cm × 0.3937007874.
- How do you convert centimeters to inches?
- Use in = cm × 0.3937007874. So 10 cm is 3.937008 in.
- How many centimeters are in one inch?
- One inch equals 2.54 centimeters, which is the reverse of the conversion above.
Related pages
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place