Nanometer is 1e-9 meter units.
Nanometers to Decameters Converter — nm to dam
Convert Nanometer (nm) to Decameter (dam) using the exact conversion factor (1 nanometer = 1e-10 decameter). See the formula, worked examples, and conversion table.
Nanometers to Decameters 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.
Decameter is 10 meter units.
Result = input x 1e-9 / 10.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Nanometers to Decameters
Nanometer and Decameter both measure length. Specifically: Nanometer is 1e-9 meter units, and decameter is 10 meter units.
Formula
decameters = nanometers × 1e-10
This factor comes from each unit's defined relationship to the category's base unit: 1 nanometer equals 1e-9 base units, and 1 decameter equals 10 base units, so dividing one by the other gives the direct nanometer-to-decameter factor of 1e-10.
Simple example
1 nm × 1e-10 = 1e-10 dam
1 nanometer = 1e-10 decameters.
Real-world example
10 nm × 1e-10 = 1e-9 dam
10 nanometers = 1e-9 decameters.
Conversion table
| Nanometer (nm) | Decameter (dam) |
|---|---|
| 1 nm | 1e-10 dam |
| 5 nm | 5e-10 dam |
| 10 nm | 1e-9 dam |
| 21.0975 nm | 2.10975e-9 dam |
| 42.195 nm | 4.2195e-9 dam |
| 100 nm | 1e-8 dam |
Reverse conversion: Decameter to Nanometer
1e-10 dam × 10000000000 = 1 nm
1e-10 decameters = 1 nanometer.
nanometers = decameters × 10000000000
For a page dedicated to this direction, see Decameter to Nanometer.
Understanding the Nanometer (nm)
Nanometer is 1e-9 meter units.
Understanding the Decameter (dam)
Decameter is 10 meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decameters are in 1 nanometer?
1 nanometer equals 1e-10 decameters, using the exact defined conversion factor rather than an estimate.
How do I convert nanometer to decameter?
Multiply the nanometer value by 1e-10. The converter above does this instantly to whatever precision you set.
How do I convert decameter back to nanometer?
Use the reverse factor: 1 decameter equals 10,000,000,000 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 decameter?
Decameter (dam) is a unit of length.
Is the nanometer to decameter conversion exact?
Yes. Both nanometer and decameter are defined by fixed standards rather than physical artifacts, so the factor of 1e-10 used above is exact to as many digits as you choose to display.