Nanometer is 1e-9 meter units.
Nanometers to Centimeters Converter — nm to cm
Convert Nanometer (nm) to Centimeter (cm) using the exact conversion factor (1 nanometer = 1e-7 centimeter). See the formula, worked examples, conversion table, history, and common uses.
Nanometers to Centimeters 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.
Centimeter is 0.01 meter units.
Result = input x 1e-9 / 0.01.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Nanometers to Centimeters
Nanometer and Centimeter both measure length. Specifically: Nanometer is 1e-9 meter units, and centimeter is 0.01 meter units.
Formula
centimeters = nanometers × 1e-7
This factor comes from each unit's defined relationship to the category's base unit: 1 nanometer equals 1e-9 base units, and 1 centimeter equals 0.01 base units, so dividing one by the other gives the direct nanometer-to-centimeter factor of 1e-7.
Simple example
1 nm × 1e-7 = 1e-7 cm
1 nanometer = 1e-7 centimeters.
Real-world example
10 nm × 1e-7 = 0.000001 cm
10 nanometers = 0.000001 centimeters.
Conversion table
| Nanometer (nm) | Centimeter (cm) |
|---|---|
| 1 nm | 1e-7 cm |
| 5 nm | 5e-7 cm |
| 10 nm | 0.000001 cm |
| 21.0975 nm | 0.0000021098 cm |
| 42.195 nm | 0.0000042195 cm |
| 100 nm | 0.00001 cm |
Reverse conversion: Centimeter to Nanometer
1e-7 cm × 10000000 = 1 nm
1e-7 centimeters = 1 nanometer.
nanometers = centimeters × 10000000
For a page dedicated to this direction, see Centimeter to Nanometer.
Understanding the Nanometer (nm)
Nanometer is 1e-9 meter units.
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.
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 centimeters are in 1 nanometer?
1 nanometer equals 1e-7 centimeters, using the exact defined conversion factor rather than an estimate.
How do I convert nanometer to centimeter?
Multiply the nanometer value by 1e-7. The converter above does this instantly to whatever precision you set.
How do I convert centimeter back to nanometer?
Use the reverse factor: 1 centimeter equals 10,000,000 nanometers. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanometer?
Nanometer (nm) is a unit of length.
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.
Is the nanometer to centimeter conversion exact?
Yes. Both nanometer and centimeter are defined by fixed standards rather than physical artifacts, so the factor of 1e-7 used above is exact to as many digits as you choose to display.