Centimetres to Inches Converter
Convert centimetres (cm) to inches (in) instantly. Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
Result
- Inches
- 0.393701 in
How to use the centimetres to inches converter
- Enter the centimetres (cm).
- The results update as you type, or press Calculate.
- Read the inches first, then the supporting figures below it.
Formula
Inches = centimetres × 0.3937007874
Worked example
For example, with these inputs:
- Centimetres (cm): 1
the calculator returns:
- Inches: 0.393701 in
Centimetres to Inches table
| Centimetres | Inches |
|---|---|
| 1 cm | 0.393701 in |
| 2 cm | 0.787402 in |
| 5 cm | 1.9685 in |
| 10 cm | 3.937 in |
| 20 cm | 7.874 in |
| 25 cm | 9.8425 in |
| 50 cm | 19.685 in |
| 100 cm | 39.3701 in |
| 250 cm | 98.4252 in |
| 500 cm | 196.8504 in |
| 1,000 cm | 393.7008 in |
About this conversion
Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Frequently asked questions
How many inches are in one centimetre?
1 cm = 0.393701 in.
How do I convert cm to in?
Inches = centimetres × 0.3937007874.