Petahertz is 1000000000000000 hertz units.
Petahertz to Zeptohertz Converter — PHz to zHz
Convert Petahertz (PHz) to Zeptohertz (zHz) using the exact conversion factor (1 petahertz = 1e+36 zeptohertz). See the formula, worked examples, and conversion table.
Petahertz to Zeptohertz 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.
Zeptohertz is 1e-21 hertz units.
Result = input x 1e+15 / 1e-21.
Frequency uses hertz as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Petahertz to Zeptohertz
Petahertz and Zeptohertz 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 zeptohertz is 1e-21 hertz units.
Formula
zeptohertz = petahertz × 1e+36
This factor comes from each unit's defined relationship to the category's base unit: 1 petahertz equals 1e+15 base units, and 1 zeptohertz equals 1e-21 base units, so dividing one by the other gives the direct petahertz-to-zeptohertz factor of 1e+36.
Simple example
1 PHz × 1e+36 = 1e+36 zHz
1 petahertz = 1e+36 zeptohertz.
Real-world example
1,000 PHz × 1e+36 = 1e+39 zHz
1,000 petahertz = 1e+39 zeptohertz.
Conversion table
| Petahertz (PHz) | Zeptohertz (zHz) |
|---|---|
| 60 PHz | 6e+37 zHz |
| 600 PHz | 6e+38 zHz |
| 1,000 PHz | 1e+39 zHz |
| 3,000 PHz | 3e+39 zHz |
| 6,000 PHz | 6e+39 zHz |
| 10,000 PHz | 1e+40 zHz |
Reverse conversion: Zeptohertz to Petahertz
1e+36 zHz × 1e-36 = 1 PHz
1e+36 zeptohertz = 1 petahertz.
petahertz = zeptohertz × 1e-36
For a page dedicated to this direction, see Zeptohertz to Petahertz.
Understanding the Petahertz (PHz)
Petahertz is 1000000000000000 hertz units.
Understanding the Zeptohertz (zHz)
Zeptohertz is 1e-21 hertz units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many zeptohertz are in 1 petahertz?
1 petahertz equals 1e+36 zeptohertz, using the exact defined conversion factor rather than an estimate.
How do I convert petahertz to zeptohertz?
Multiply the petahertz value by 1e+36. The converter above does this instantly to whatever precision you set.
How do I convert zeptohertz back to petahertz?
Use the reverse factor: 1 zeptohertz equals 1e-36 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 zeptohertz?
Zeptohertz (zHz) is a unit of frequency.
Is the petahertz to zeptohertz conversion exact?
Yes. Both petahertz and zeptohertz are defined by fixed standards rather than physical artifacts, so the factor of 1e+36 used above is exact to as many digits as you choose to display.