Terahertz is 1000000000000 hertz units.
Terahertz to Petahertz Converter — THz to PHz
Convert Terahertz (THz) to Petahertz (PHz) using the exact conversion factor (1 terahertz = 0.001 petahertz). See the formula, worked examples, and conversion table.
Terahertz to Petahertz 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.
Petahertz is 1000000000000000 hertz units.
Result = input x 1e+12 / 1e+15.
Frequency uses hertz as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Terahertz to Petahertz
Terahertz and Petahertz 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: Terahertz is 1000000000000 hertz units, and petahertz is 1000000000000000 hertz units.
Formula
petahertz = terahertz × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 terahertz equals 1e+12 base units, and 1 petahertz equals 1e+15 base units, so dividing one by the other gives the direct terahertz-to-petahertz factor of 0.001.
Simple example
1 THz × 0.001 = 0.001 PHz
1 terahertz = 0.001 petahertz.
Real-world example
1,000 THz × 0.001 = 1 PHz
1,000 terahertz = 1 petahertz.
Conversion table
| Terahertz (THz) | Petahertz (PHz) |
|---|---|
| 60 THz | 0.06 PHz |
| 600 THz | 0.6 PHz |
| 1,000 THz | 1 PHz |
| 3,000 THz | 3 PHz |
| 6,000 THz | 6 PHz |
| 10,000 THz | 10 PHz |
Reverse conversion: Petahertz to Terahertz
0.001 PHz × 1000 = 1 THz
0.001 petahertz = 1 terahertz.
terahertz = petahertz × 1000
For a page dedicated to this direction, see Petahertz to Terahertz.
Understanding the Terahertz (THz)
Terahertz is 1000000000000 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 terahertz?
1 terahertz equals 0.001 petahertz, using the exact defined conversion factor rather than an estimate.
How do I convert terahertz to petahertz?
Multiply the terahertz value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert petahertz back to terahertz?
Use the reverse factor: 1 petahertz equals 1,000 terahertz. You can also use the swap control in the converter above to flip the direction instantly.
What is a terahertz?
Terahertz (THz) is a unit of frequency.
What is a petahertz?
Petahertz (PHz) is a unit of frequency.
Is the terahertz to petahertz conversion exact?
Yes. Both terahertz and petahertz 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.