Megahertz to Gigahertz Converter
Converts megahertz (MHz) to gigahertz (GHz) and back. The conversion factor is shown below every result.
How to Convert Megahertz to Gigahertz
What Is a Megahertz?
The megahertz (MHz) is an SI unit of frequency equal to 1,000,000 hertz.
What Is a Gigahertz?
The gigahertz (GHz) is an SI unit of frequency equal to 1,000,000,000 hertz, commonly used for CPU clock speeds and radio frequencies.
Common Megahertz to Gigahertz Reference Points
Real-world reference values for quick sanity checks.
| Item | Megahertz (MHz) | Gigahertz (approx.) |
|---|---|---|
| A typical Wi-Fi 2.4 GHz band (in MHz) | 2400 MHz | 2.4 GHz |
| An older CPU clock speed (approx.) | 800 MHz | 0.8 GHz |
| Reference values are illustrative approximations for common items, not measured specifications. | ||
Megahertz to Gigahertz Conversion Table
| Megahertz (MHz) | Gigahertz (GHz) |
|---|---|
| 100 MHz | 0.1 GHz |
| 500 MHz | 0.5 GHz |
| 800 MHz | 0.8 GHz |
| 1000 MHz | 1 GHz |
| 2400 MHz | 2.4 GHz |
| 3500 MHz | 3.5 GHz |
| 5000 MHz | 5 GHz |
| Source: NIST SI prefix guidance (1 GHz = 1,000 MHz exactly) | |
Frequently Asked Questions
How do I convert MHz to GHz?
Divide the MHz value by 1,000 (or multiply by 0.001). For example, 2,400 MHz × 0.001 = 2.4 GHz.
Why do Wi-Fi bands get described in both MHz and GHz?
The overall band is usually named by its GHz figure (2.4 GHz, 5 GHz) for simplicity, while individual channel spacing within that band is specified in MHz because the differences between channels are much smaller than a full gigahertz.
Is this conversion always exactly 1,000?
Yes. Both MHz and GHz are decimal SI multiples of the hertz, so the ratio between them is always exactly 1,000, with no rounding.
Related Frequency Converters
A good measuring tool marked in both MHz and GHz removes the guesswork at the point of use.