Centimetres to Nanometres Converter
Convert centimetres (cm) to nanometres (nm) 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
- Nanometres
- 10,000,000 nm
How to use the centimetres to nanometres converter
- Enter the centimetres (cm).
- The results update as you type, or press Calculate.
- Read the nanometres first, then the supporting figures below it.
Formula
Nanometres = centimetres × 10,000,000
Worked example
For example, with these inputs:
- Centimetres (cm): 1
the calculator returns:
- Nanometres: 10,000,000 nm
Centimetres to Nanometres table
| Centimetres | Nanometres |
|---|---|
| 1 cm | 10,000,000 nm |
| 2 cm | 20,000,000 nm |
| 5 cm | 50,000,000 nm |
| 10 cm | 100,000,000 nm |
| 20 cm | 200,000,000 nm |
| 25 cm | 250,000,000 nm |
| 50 cm | 500,000,000 nm |
| 100 cm | 1,000,000,000 nm |
| 250 cm | 2,500,000,000 nm |
| 500 cm | 5,000,000,000 nm |
| 1,000 cm | 10,000,000,000 nm |
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.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
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.
Frequently asked questions
How many nanometres are in one centimetre?
1 cm = 10,000,000 nm.
How do I convert cm to nm?
Nanometres = centimetres × 10,000,000.