Centimeter is 0.01 meter units.
Centimeters to Nanometers Converter — cm to nm
Convert Centimeter (cm) to Nanometer (nm) using the exact conversion factor (1 centimeter = 10,000,000 nanometer). See the formula, worked examples, conversion table, history, and common uses.
Centimeters to Nanometers converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
Nanometer is 1e-9 meter units.
Result = input x 0.01 / 1e-9.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Centimeters to Nanometers
Centimeter and Nanometer both measure length. Centimeter is most often used for everyday small-object and body measurement (height, clothing sizes) outside the us.
Formula
nanometers = centimeters × 10000000
This factor comes from each unit's defined relationship to the category's base unit: 1 centimeter equals 0.01 base units, and 1 nanometer equals 1e-9 base units, so dividing one by the other gives the direct centimeter-to-nanometer factor of 10000000.
Simple example
1 cm × 10000000 = 10,000,000 nm
1 centimeter = 10,000,000 nanometers.
Real-world example
10 cm × 10000000 = 100,000,000 nm
10 centimeters = 100,000,000 nanometers.
Conversion table
| Centimeter (cm) | Nanometer (nm) |
|---|---|
| 1 cm | 10,000,000 nm |
| 5 cm | 50,000,000 nm |
| 10 cm | 100,000,000 nm |
| 21.0975 cm | 210,975,000 nm |
| 42.195 cm | 421,950,000 nm |
| 100 cm | 1,000,000,000 nm |
Reverse conversion: Nanometer to Centimeter
1 nm × 1e-7 = 1e-7 cm
1 nanometer = 1e-7 centimeters.
centimeters = nanometers × 1e-7
For a page dedicated to this direction, see Nanometer to Centimeter.
Understanding the Centimeter
Centimeter (cm) measures distance. A centimeter is one-hundredth of a meter. It is classified as a SI derived (metric prefix) unit.
Where it's used: Standard small-length unit worldwide except the US
Uses of the Centimeter today
- Everyday small-object and body measurement (height, clothing sizes) outside the US
- Construction and manufacturing tolerances internationally
History of the Centimeter
The centimeter follows directly from the meter via the 'centi-' SI prefix (10⁻²), introduced with the metric system in the 1790s.
Historical origin. Centimeter was not the invention of a single named person; it developed through the process described above.
Understanding the Nanometer (nm)
Nanometer is 1e-9 meter units.
Centimeter — sources
- BIPM SI Brochure — SI prefixes — Defines 'centi-' as the prefix for 10⁻².
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanometers are in 1 centimeter?
1 centimeter equals 10,000,000 nanometers, using the exact defined conversion factor rather than an estimate.
How do I convert centimeter to nanometer?
Multiply the centimeter value by 10000000. The converter above does this instantly to whatever precision you set.
How do I convert nanometer back to centimeter?
Use the reverse factor: 1 nanometer equals 1e-7 centimeters. You can also use the swap control in the converter above to flip the direction instantly.
What is a centimeter?
Centimeter (cm) measures distance. A centimeter is one-hundredth of a meter. It is classified as a SI derived (metric prefix) unit.
What is a nanometer?
Nanometer (nm) is a unit of length.
Is the centimeter to nanometer conversion exact?
Yes. Both centimeter and nanometer are defined by fixed standards rather than physical artifacts, so the factor of 10000000 used above is exact to as many digits as you choose to display.
Where is the centimeter still used today?
Standard small-length unit worldwide except the US