Gigahertz to Megahertz Converter
One Gigahertz equals 1000 Megahertz (1 GHz = 1000 MHz). Multiply a Gigahertz value by 1000 to get the equivalent in Megahertz. Enter your value in the calculator above. The formula and examples below show how to calculate it by hand.
Formula
MHz = GHz × 1000
Multiply the Gigahertz value by 1000 to get the equivalent value in Megahertz.
Example Conversions
1 Gigahertz (GHz)
1000 Megahertz (MHz)
5 Gigahertz (GHz)
5000 Megahertz (MHz)
10 Gigahertz (GHz)
10000 Megahertz (MHz)
25 Gigahertz (GHz)
25000 Megahertz (MHz)
100 Gigahertz (GHz)
100000 Megahertz (MHz)
Conversion Table
| Gigahertz (GHz) | Megahertz (MHz) |
|---|---|
| 0.1 | 100 |
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 250 | 250000 |
| 500 | 500000 |
| 1000 | 1000000 |
How to Convert Manually
Use these steps to convert Gigahertz values to Megahertz without the calculator.
- Write down the value in Gigahertz (GHz) that you want to convert.
- Multiply that value by 1000.
- For example, 10 Gigahertz × 1000 = 10000 Megahertz.
- Label the result as Megahertz (MHz).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Gigahertz and one Megahertz.
About Gigahertz and Megahertz
The gigahertz is one billion hertz. Modern CPU clock speeds, Wi-Fi bands (2.4/5/6 GHz), and mobile networks operate in gigahertz. The megahertz is one million hertz. FM radio (87.5–108 MHz), older CPU clocks, and RAM speeds are quoted in megahertz. One Gigahertz equals 1000 Megahertz (1 GHz = 1000 MHz). Gigahertz is used in CPU clock speeds and in Wi-Fi and mobile network bands. Megahertz is used in FM radio frequencies.
Precision and Rounding:Frequency conversions are exact decimal shifts except rpm and rps, which involve the factor 60. Audio and radio work round to convenient figures; clock signals, tuning, and rotating machinery balancing need the unrounded value.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15Gigahertz equals15000Megahertz.
15 GHz × 1000 = 15000 MHz
FAQ
How do I convert Gigahertz to Megahertz?
Multiply the Gigahertz value by 1000 to get the equivalent value in Megahertz.
What is the formula for Gigahertz to Megahertz?
The formula is MHz = GHz × 1000.
How many Megahertz are in 1 Gigahertz?
1 Gigahertz equals 1000 Megahertz.
Can I convert Megahertz back to Gigahertz?
Yes. 1 Megahertz equals 0.001 Gigahertz, and the related converter can reverse the calculation.
What are common names for Gigahertz and Megahertz?
Gigahertz is shown as GHz and may also be searched as gigahertz. Megahertz is shown as MHz and may also be searched as megahertz.
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