cm to inches – convert centimetres to inches
Convert cm to inches (centimetres to inches) for height, furniture sizes, DIY projects and online shopping. This page links to the main length converter with cm → in pre-selected so you can quickly switch between metric and imperial.
Open the interactive cm → in converter:
Use main converter (cm → in) or switch to in → cmThe homepage also handles millimetres, metres, kilometres, feet, yards, miles and nautical miles using the same accurate factors.
Quick reference: cm to inches
1 inch is defined as exactly 2.54 cm, so: inches = centimetres ÷ 2.54. Some useful conversions:
| Centimetres (cm) | Inches (in, approx.) |
|---|---|
| 50 cm | 19.7 in |
| 100 cm | 39.4 in |
| 150 cm | 59.1 in |
| 160 cm | 63.0 in |
| 170 cm | 66.9 in |
| 180 cm | 70.9 in |
| 190 cm | 74.8 in |
Why convert centimetres to inches?
Common reasons to convert cm to inches include:
- Reading clothing size charts that show heights in feet and inches.
- Comparing monitor, TV or laptop sizes listed in inches.
- Checking US building, carpentry or DIY plans that use imperial units.
- Buying furniture online when your tape measure is in centimetres.
More length converters on this site
cm to inches FAQ
What is the exact formula for cm to inches?
Divide the length in centimetres by 2.54. Example: 180 cm ÷ 2.54 ≈ 70.9 in.
Is 2.5 cm close enough to 1 inch?
2.5 cm is slightly less than 1 in. The exact conversion is 1 in = 2.54 cm, but 2.5 is a common mental shortcut.
Why do some sites say “centimeter” and others “centimetre”?
Centimeter is US spelling; centimetre is UK spelling. Both refer to the same SI unit, cm.
Page last updated: 2 December 2025.