Nanohertz is 1e-9 hertz units.
Nanohertz to Petahertz Converter — nHz to PHz
Convert Nanohertz (nHz) to Petahertz (PHz) using the exact conversion factor (1 nanohertz = 1e-24 petahertz). See the formula, worked examples, and conversion table.
Nanohertz to Petahertz 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.
Petahertz is 1000000000000000 hertz units.
Result = input x 1e-9 / 1e+15.
Frequency units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Nanohertz to Petahertz
Nanohertz and Petahertz 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: Nanohertz is 1e-9 hertz units, and petahertz is 1000000000000000 hertz units.
Formula
petahertz = nanohertz × 1e-24
This factor comes from each unit's defined relationship to the category's base unit: 1 nanohertz equals 1e-9 base units, and 1 petahertz equals 1e+15 base units, so dividing one by the other gives the direct nanohertz-to-petahertz factor of 1e-24.
Simple example
1 nHz × 1e-24 = 1e-24 PHz
1 nanohertz = 1e-24 petahertz.
Real-world example
10 nHz × 1e-24 = 1e-23 PHz
10 nanohertz = 1e-23 petahertz.
Conversion table
| Nanohertz (nHz) | Petahertz (PHz) |
|---|---|
| 0.001 nHz | 1e-27 PHz |
| 0.01 nHz | 1e-26 PHz |
| 1 nHz | 1e-24 PHz |
| 10 nHz | 1e-23 PHz |
| 100 nHz | 1e-22 PHz |
| 1,000 nHz | 1e-21 PHz |
Reverse conversion: Petahertz to Nanohertz
1e-24 PHz × 1e+24 = 1 nHz
1e-24 petahertz = 1 nanohertz.
nanohertz = petahertz × 1e+24
For a page dedicated to this direction, see Petahertz to Nanohertz.
Understanding the Nanohertz (nHz)
Nanohertz is 1e-9 hertz units.
Understanding the Petahertz (PHz)
Petahertz is 1000000000000000 hertz units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many petahertz are in 1 nanohertz?
1 nanohertz equals 1e-24 petahertz, using the exact defined conversion factor rather than an estimate.
How do I convert nanohertz to petahertz?
Multiply the nanohertz value by 1e-24. The converter above does this instantly to whatever precision you set.
How do I convert petahertz back to nanohertz?
Use the reverse factor: 1 petahertz equals 1e+24 nanohertz. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanohertz?
Nanohertz (nHz) is a unit of scientific units.
What is a petahertz?
Petahertz (PHz) is a unit of scientific units.
Is the nanohertz to petahertz conversion exact?
Yes. Both nanohertz and petahertz are defined by fixed standards rather than physical artifacts, so the factor of 1e-24 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.