Attometer is 1e-18 meter units.
Attometers to Nanometers Converter — am to nm
Convert Attometer (am) to Nanometer (nm) using the exact conversion factor (1 attometer = 1e-9 nanometer). See the formula, worked examples, and conversion table.
Attometers 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 1e-18 / 1e-9.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Attometers to Nanometers
Attometer and Nanometer both measure length. Specifically: Attometer is 1e-18 meter units, and nanometer is 1e-9 meter units.
Formula
nanometers = attometers × 1e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 attometer equals 1e-18 base units, and 1 nanometer equals 1e-9 base units, so dividing one by the other gives the direct attometer-to-nanometer factor of 1e-9.
Simple example
1 am × 1e-9 = 1e-9 nm
1 attometer = 1e-9 nanometers.
Real-world example
10 am × 1e-9 = 1e-8 nm
10 attometers = 1e-8 nanometers.
Conversion table
| Attometer (am) | Nanometer (nm) |
|---|---|
| 1 am | 1e-9 nm |
| 5 am | 5e-9 nm |
| 10 am | 1e-8 nm |
| 21.0975 am | 2.10975e-8 nm |
| 42.195 am | 4.2195e-8 nm |
| 100 am | 1e-7 nm |
Reverse conversion: Nanometer to Attometer
1e-9 nm × 1000000000 = 1 am
1e-9 nanometers = 1 attometer.
attometers = nanometers × 1000000000
For a page dedicated to this direction, see Nanometer to Attometer.
Understanding the Attometer (am)
Attometer is 1e-18 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 attometer?
1 attometer equals 1e-9 nanometers, using the exact defined conversion factor rather than an estimate.
How do I convert attometer to nanometer?
Multiply the attometer value by 1e-9. The converter above does this instantly to whatever precision you set.
How do I convert nanometer back to attometer?
Use the reverse factor: 1 nanometer equals 1,000,000,000 attometers. You can also use the swap control in the converter above to flip the direction instantly.
What is a attometer?
Attometer (am) is a unit of length.
What is a nanometer?
Nanometer (nm) is a unit of length.
Is the attometer to nanometer conversion exact?
Yes. Both attometer and nanometer are defined by fixed standards rather than physical artifacts, so the factor of 1e-9 used above is exact to as many digits as you choose to display.