Gigahertz to Megahertz Converter
Enter the frequency in gigahertz below to convert it to megahertz.
Convert Gigahertz to Megahertz
Enter a value in gigahertz (GHz) to convert to megahertz (MHz).
Gigahertz to Megahertz Conversion Table
Table showing various gigahertz measurements converted to megahertz. Click any preset value or arrow to load it into the converter.
| Gigahertz (GHz) | Megahertz (MHz) |
|---|---|
| 1 GHz | 1,000 MHz |
| 1.8 GHz | 1,800 MHz |
| 2 GHz | 2,000 MHz |
| 3.6 GHz | 3,600 MHz |
| 5 GHz | 5,000 MHz |
| 7.2 GHz | 7,200 MHz |
| 10 GHz | 10,000 MHz |
| 15 GHz | 15,000 MHz |
| 18 GHz | 18,000 MHz |
| 20 GHz | 20,000 MHz |
How to Convert Gigahertz to Megahertz
To convert gigahertz to megahertz, multiply the frequency by the following conversion ratio: 1,000 megahertz/gigahertz.
Since one gigahertz is equal to 1,000 megahertz, you can use this simple formula to convert:
The frequency in megahertz is equal to the frequency in gigahertz multiplied by 1,000.
For example, here's how to convert 3.6 gigahertz to megahertz using the formula above.
How Many Megahertz Are in a Gigahertz?
There are 1,000 megahertz in a gigahertz, which is why we use this value in the formula above.
Our gigahertz to megahertz calculator automatically converts your frequency measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Gigahertz and megahertz are both units used to measure frequency. Keep reading to learn more about each unit.
What Is a Gigahertz?
A gigahertz is a unit of frequency equal to 1,000,000,000 hertz (Hz), the base unit for frequency. Equal to 1,000,000,000 Hz. [1]
The gigahertz is classified as a metric and SI-compatible unit of frequency. Gigahertz can be abbreviated as GHz; for example, 1 gigahertz can be written as 1 GHz.
In the metric system, "giga" is the standard SI prefix for billions, or 10⁹. This makes the gigahertz (GHz) a convenient decimal multiple of the hertz (Hz).
In practice, gigahertz (GHz) are widely used across large-scale industrial, bulk, and macro-level frequency specifications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Megahertz?
A megahertz is a unit of frequency equal to 1,000,000 hertz (Hz), the base unit for frequency. Equal to 1,000,000 Hz. [2]
The megahertz is classified as a metric and SI-compatible unit of frequency. Megahertz can be abbreviated as MHz; for example, 1 megahertz can be written as 1 MHz.
In the metric system, "mega" is the standard SI prefix for millions, or 10⁶. This makes the megahertz (MHz) a convenient decimal multiple of the hertz (Hz).
In practice, megahertz (MHz) are widely used across large-scale industrial, bulk, and macro-level frequency specifications within SI metric workflows, engineering documentation, and technical data sheets.
When converting frequency between gigahertz (GHz) and megahertz (MHz), keep full floating-point precision (1 GHz = 1,000 MHz; 1 MHz = 0.001 GHz) during intermediate calculations and round only the final megahertz figure to match your instrument tolerance.
More Gigahertz & Megahertz Conversions
Need to calculate in the opposite direction? Use our megahertz to gigahertz converter (MHz to GHz) to switch your starting unit immediately. You can also explore related tools such as converting kilohertz to megahertz, converting hertz to megahertz, or converting gigahertz to hertz.
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Time & Frequency)·Frequency Metrology Standard — Gigahertz (GHz) to Megahertz (MHz)
- [2]BIPM SpecificationBIPM (SI Base Unit: Second (s) & Hertz (Hz))·Unit Specifications: Gigahertz (GHz) & Megahertz (MHz)
- [3]NIST CUU ReferenceNIST CUU (Derived SI Unit: Hertz (Hz))·Conversion Factors & Mathematical Basis (GHz to MHz)