Gigahertz to Megahertz
Convert GHz to MHz quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.
1 GHz equals approximately 1000 MHz.
How to use the Gigahertz to Megahertz
- Enter the number you want to convert.
- Confirm the source unit shown beside the input.
- Choose decimal precision if you need more or less detail.
- Read the converted result.
- Copy the result when you need to use it elsewhere.
How the conversion works
1 GHz equals approximately 1000 MHz.
For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.
Common GHz to MHz conversions
| GHz | MHz |
|---|---|
| 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 |
| 50 GHz | 50,000 MHz |
Example
For example, entering 1 GHz gives approximately 1,000 MHz using the rule above. Change the input to test your own value.
Frequently asked questions
Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.
Page reviewed: August 24, 2026.