Attohertz is 1e-18 hertz units.
Attohertz to Femtohertz Converter — aHz to fHz
Convert Attohertz (aHz) to Femtohertz (fHz) using the exact conversion factor (1 attohertz = 0.001 femtohertz). See the formula, worked examples, and conversion table.
Attohertz to Femtohertz converter
Converter
Scientific Units Converter
Convert SI derived units, scientific notation-friendly units, atomic units, and lab measurements.
Context values
Some unit families need one extra value for a physically accurate result.
Femtohertz is 1e-15 hertz units.
Result = input x 1e-18 / 1e-15.
Frequency units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Attohertz to Femtohertz
Attohertz and Femtohertz are both scientific-measurement units, spanning everything from atomic and laboratory scales to astronomical distances — the kind of conversion that comes up constantly in physics, chemistry, and astronomy when a result needs to move between conventions used in different subfields. Specifically: Attohertz is 1e-18 hertz units, and femtohertz is 1e-15 hertz units.
Formula
femtohertz = attohertz × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 attohertz equals 1e-18 base units, and 1 femtohertz equals 1e-15 base units, so dividing one by the other gives the direct attohertz-to-femtohertz factor of 0.001.
Simple example
1 aHz × 0.001 = 0.001 fHz
1 attohertz = 0.001 femtohertz.
Real-world example
10 aHz × 0.001 = 0.01 fHz
10 attohertz = 0.01 femtohertz.
Conversion table
| Attohertz (aHz) | Femtohertz (fHz) |
|---|---|
| 0.001 aHz | 0.000001 fHz |
| 0.01 aHz | 0.00001 fHz |
| 1 aHz | 0.001 fHz |
| 10 aHz | 0.01 fHz |
| 100 aHz | 0.1 fHz |
| 1,000 aHz | 1 fHz |
Reverse conversion: Femtohertz to Attohertz
0.001 fHz × 1000 = 1 aHz
0.001 femtohertz = 1 attohertz.
attohertz = femtohertz × 1000
For a page dedicated to this direction, see Femtohertz to Attohertz.
Understanding the Attohertz (aHz)
Attohertz is 1e-18 hertz units.
Understanding the Femtohertz (fHz)
Femtohertz is 1e-15 hertz units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtohertz are in 1 attohertz?
1 attohertz equals 0.001 femtohertz, using the exact defined conversion factor rather than an estimate.
How do I convert attohertz to femtohertz?
Multiply the attohertz value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert femtohertz back to attohertz?
Use the reverse factor: 1 femtohertz equals 1,000 attohertz. You can also use the swap control in the converter above to flip the direction instantly.
What is a attohertz?
Attohertz (aHz) is a unit of scientific units.
What is a femtohertz?
Femtohertz (fHz) is a unit of scientific units.
Is the attohertz to femtohertz conversion exact?
Yes. Both attohertz and femtohertz are defined by fixed standards rather than physical artifacts, so the factor of 0.001 used above is exact to as many digits as you choose to display.
Why does this category span everything from atomic to astronomical scales?
Scientific work spans an enormous range of physical scales, from atomic distances (measured in angstroms or atomic mass units) to interstellar distances (measured in astronomical units or parsecs), so this category groups SI-derived and scale-specific units that researchers commonly need to convert between within their field.