Frequency conversion
5 units, with Hz as the base. Every value in the factor table is the number you multiply by, so reading across a row converts out of that unit and reading down a column converts into it.
Factor table
| from \ to | Hz | kHz | MHz | GHz | THz |
|---|---|---|---|---|---|
| Hz | 1 | 0.001 | 1 × 10⁻⁶ | 1 × 10⁻⁹ | 1 × 10⁻¹² |
| kHz | 1000 | 1 | 0.001 | 1 × 10⁻⁶ | 1 × 10⁻⁹ |
| MHz | 1 × 10⁶ | 1000 | 1 | 0.001 | 1 × 10⁻⁶ |
| GHz | 1 × 10⁹ | 1 × 10⁶ | 1000 | 1 | 0.001 |
| THz | 1 × 10¹² | 1 × 10⁹ | 1 × 10⁶ | 1000 | 1 |
Prefixes such as milli, micro and kilo follow the SI prefixes table.
The values are facts and free to use; this table’s selection and presentation are © 2026 ScienceQuest.
Worked example
- 1 THz in Hz
- = 1 × (1 × 10¹²)
- = 1 × 10¹² Hz
Convert a number
The table gives the factor; the unit converter does the arithmetic, remembers the units you picked, and turns any conversion into a link you can share.