Gigahertz is 1000000000 hertz units.
Gigahertz to Megahertz Converter — GHz to MHz
Convert Gigahertz (GHz) to Megahertz (MHz) using the exact conversion factor (1 gigahertz = 1,000 megahertz). See the formula, worked examples, and conversion table.
Gigahertz to Megahertz 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.
Megahertz is 1000000 hertz units.
Result = input x 1e+9 / 1e+6.
Frequency uses hertz as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gigahertz to Megahertz
Gigahertz and Megahertz 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: Gigahertz is 1000000000 hertz units, and megahertz is 1000000 hertz units.
Formula
megahertz = gigahertz × 1000
This factor comes from each unit's defined relationship to the category's base unit: 1 gigahertz equals 1000000000 base units, and 1 megahertz equals 1000000 base units, so dividing one by the other gives the direct gigahertz-to-megahertz factor of 1000.
Simple example
1 GHz × 1000 = 1,000 MHz
1 gigahertz = 1,000 megahertz.
Real-world example
1,000 GHz × 1000 = 1,000,000 MHz
1,000 gigahertz = 1,000,000 megahertz.
Conversion table
| Gigahertz (GHz) | Megahertz (MHz) |
|---|---|
| 60 GHz | 60,000 MHz |
| 600 GHz | 600,000 MHz |
| 1,000 GHz | 1,000,000 MHz |
| 3,000 GHz | 3,000,000 MHz |
| 6,000 GHz | 6,000,000 MHz |
| 10,000 GHz | 10,000,000 MHz |
Reverse conversion: Megahertz to Gigahertz
1 MHz × 0.001 = 0.001 GHz
1 megahertz = 0.001 gigahertz.
gigahertz = megahertz × 0.001
For a page dedicated to this direction, see Megahertz to Gigahertz.
Understanding the Gigahertz (GHz)
Gigahertz is 1000000000 hertz units.
Understanding the Megahertz (MHz)
Megahertz is 1000000 hertz units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megahertz are in 1 gigahertz?
1 gigahertz equals 1,000 megahertz, using the exact defined conversion factor rather than an estimate.
How do I convert gigahertz to megahertz?
Multiply the gigahertz value by 1000. The converter above does this instantly to whatever precision you set.
How do I convert megahertz back to gigahertz?
Use the reverse factor: 1 megahertz equals 0.001 gigahertz. You can also use the swap control in the converter above to flip the direction instantly.
What is a gigahertz?
Gigahertz (GHz) is a unit of frequency.
What is a megahertz?
Megahertz (MHz) is a unit of frequency.
Is the gigahertz to megahertz conversion exact?
Yes. Both gigahertz and megahertz are defined by fixed standards rather than physical artifacts, so the factor of 1000 used above is exact to as many digits as you choose to display.