Petahertz is 1000000000000000 hertz units.
Petahertz to Exahertz Converter — PHz to EHz
Convert Petahertz (PHz) to Exahertz (EHz) using the exact conversion factor (1 petahertz = 0.001 exahertz). See the formula, worked examples, and conversion table.
Petahertz to Exahertz converter
Converter
Frequency Converter
Convert hertz, SI frequency prefixes, RPM, beats per minute, and angular frequency.
Context values
Some unit families need one extra value for a physically accurate result.
Exahertz is 1000000000000000000 hertz units.
Result = input x 1e+15 / 1e+18.
Frequency uses hertz as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Petahertz to Exahertz
Petahertz and Exahertz both describe how fast something cycles or rotates, and the conversion is a routine part of reading a car tachometer or motor spec sheet against a scientific frequency figure. Specifically: Petahertz is 1000000000000000 hertz units, and exahertz is 1000000000000000000 hertz units.
Formula
exahertz = petahertz × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 petahertz equals 1e+15 base units, and 1 exahertz equals 1e+18 base units, so dividing one by the other gives the direct petahertz-to-exahertz factor of 0.001.
Simple example
1 PHz × 0.001 = 0.001 EHz
1 petahertz = 0.001 exahertz.
Real-world example
1,000 PHz × 0.001 = 1 EHz
1,000 petahertz = 1 exahertz.
Conversion table
| Petahertz (PHz) | Exahertz (EHz) |
|---|---|
| 60 PHz | 0.06 EHz |
| 600 PHz | 0.6 EHz |
| 1,000 PHz | 1 EHz |
| 3,000 PHz | 3 EHz |
| 6,000 PHz | 6 EHz |
| 10,000 PHz | 10 EHz |
Reverse conversion: Exahertz to Petahertz
0.001 EHz × 1000 = 1 PHz
0.001 exahertz = 1 petahertz.
petahertz = exahertz × 1000
For a page dedicated to this direction, see Exahertz to Petahertz.
Understanding the Petahertz (PHz)
Petahertz is 1000000000000000 hertz units.
Understanding the Exahertz (EHz)
Exahertz is 1000000000000000000 hertz units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many exahertz are in 1 petahertz?
1 petahertz equals 0.001 exahertz, using the exact defined conversion factor rather than an estimate.
How do I convert petahertz to exahertz?
Multiply the petahertz value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert exahertz back to petahertz?
Use the reverse factor: 1 exahertz equals 1,000 petahertz. You can also use the swap control in the converter above to flip the direction instantly.
What is a petahertz?
Petahertz (PHz) is a unit of frequency.
What is a exahertz?
Exahertz (EHz) is a unit of frequency.
Is the petahertz to exahertz conversion exact?
Yes. Both petahertz and exahertz 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.