Decimeter is 0.1 meter units.
Decimeters to Nanometers Converter — dm to nm
Convert Decimeter (dm) to Nanometer (nm) using the exact conversion factor (1 decimeter = 100,000,000 nanometer). See the formula, worked examples, and conversion table.
Decimeters 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 0.1 / 1e-9.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Decimeters to Nanometers
Decimeter and Nanometer both measure length. Specifically: Decimeter is 0.1 meter units, and nanometer is 1e-9 meter units.
Formula
nanometers = decimeters × 100000000
This factor comes from each unit's defined relationship to the category's base unit: 1 decimeter equals 0.1 base units, and 1 nanometer equals 1e-9 base units, so dividing one by the other gives the direct decimeter-to-nanometer factor of 100000000.
Simple example
1 dm × 100000000 = 100,000,000 nm
1 decimeter = 100,000,000 nanometers.
Real-world example
10 dm × 100000000 = 1,000,000,000 nm
10 decimeters = 1,000,000,000 nanometers.
Conversion table
| Decimeter (dm) | Nanometer (nm) |
|---|---|
| 1 dm | 100,000,000 nm |
| 5 dm | 500,000,000 nm |
| 10 dm | 1,000,000,000 nm |
| 21.0975 dm | 2,109,750,000 nm |
| 42.195 dm | 4,219,500,000 nm |
| 100 dm | 10,000,000,000 nm |
Reverse conversion: Nanometer to Decimeter
1 nm × 1e-8 = 1e-8 dm
1 nanometer = 1e-8 decimeters.
decimeters = nanometers × 1e-8
For a page dedicated to this direction, see Nanometer to Decimeter.
Understanding the Decimeter (dm)
Decimeter is 0.1 meter units.
Understanding the Nanometer (nm)
Nanometer is 1e-9 meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanometers are in 1 decimeter?
1 decimeter equals 100,000,000 nanometers, using the exact defined conversion factor rather than an estimate.
How do I convert decimeter to nanometer?
Multiply the decimeter value by 100000000. The converter above does this instantly to whatever precision you set.
How do I convert nanometer back to decimeter?
Use the reverse factor: 1 nanometer equals 1e-8 decimeters. You can also use the swap control in the converter above to flip the direction instantly.
What is a decimeter?
Decimeter (dm) is a unit of length.
What is a nanometer?
Nanometer (nm) is a unit of length.
Is the decimeter to nanometer conversion exact?
Yes. Both decimeter and nanometer are defined by fixed standards rather than physical artifacts, so the factor of 100000000 used above is exact to as many digits as you choose to display.