How to Convert Hertz to Gigahertz (Hz to GHz)
Frequency conversions apply to radio stations, Wi-Fi bands and processor speeds. This guide shows how to convert hertz into gigahertz by hand, with examples and a quick-reference table.
The conversion
To convert hertz to gigahertz, multiply the value by 1.000000e-09. To go the other way, divide by the same number (or multiply by 999,999,999.9999998808). Because the factor is tiny, scientific notation keeps the numbers manageable.
Gigahertz = hertz × 1.000000e-09
Worked examples
- 3 Hz = 3.000000e-9 GHz
- 12.5 Hz = 1.250000e-8 GHz
- 75 Hz = 7.500000e-8 GHz
Hertz to Gigahertz table
| Hertz | Gigahertz |
|---|---|
| 1 Hz | 1.000000e-9 GHz |
| 2 Hz | 2.000000e-9 GHz |
| 5 Hz | 5.000000e-9 GHz |
| 10 Hz | 1.000000e-8 GHz |
| 20 Hz | 2.000000e-8 GHz |
| 25 Hz | 2.500000e-8 GHz |
| 50 Hz | 5.000000e-8 GHz |
| 100 Hz | 1.000000e-7 GHz |
| 250 Hz | 2.500000e-7 GHz |
| 500 Hz | 5.000000e-7 GHz |
| 1,000 Hz | 1.000000e-6 GHz |
Common questions
Is Hz to GHz exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Gigahertz to Hertz converter.
Mistakes to avoid
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Background
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
For any value, use the Hertz to Gigahertz Converter or browse all frequency converters.
Run your own numbers: Hertz to Gigahertz Converter