How to Convert Gigahertz to Megahertz (GHz to MHz)
Frequency conversions apply to radio stations, Wi-Fi bands and processor speeds. This guide shows how to convert gigahertz into megahertz by hand, with examples and a quick-reference table.
The conversion
To convert gigahertz to megahertz, multiply the value by 1,000. To go the other way, divide by the same number (or multiply by 0.001). For a quick estimate, multiply by about 1,000.
Megahertz = gigahertz × 1,000
Worked examples
- 3 GHz = 3,000 MHz
- 12.5 GHz = 12,500 MHz
- 75 GHz = 75,000 MHz
Gigahertz to Megahertz table
| Gigahertz | Megahertz |
|---|---|
| 1 GHz | 1,000 MHz |
| 2 GHz | 2,000 MHz |
| 5 GHz | 5,000 MHz |
| 10 GHz | 10,000 MHz |
| 20 GHz | 20,000 MHz |
| 25 GHz | 25,000 MHz |
| 50 GHz | 50,000 MHz |
| 100 GHz | 100,000 MHz |
| 250 GHz | 250,000 MHz |
| 500 GHz | 500,000 MHz |
| 1,000 GHz | 1,000,000 MHz |
Common questions
Is GHz to MHz 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 Megahertz to Gigahertz converter.
Mistakes to avoid
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
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.
Background
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
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 everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
For any value, use the Gigahertz to Megahertz Converter or browse all frequency converters.
Run your own numbers: Gigahertz to Megahertz Converter