Convert GHz to MHz
Gigahertz to megahertz. Enter a value to convert, or use the GHz to MHz chart further down the page.
1 gigahertz equals 1,000 megahertz. Going the other way, 1 megahertz = 0.001 gigahertz.
How to convert GHz to MHz
To convert gigahertz to megahertz, multiply the gigahertz value by 1000. You can also divide by 0.001 to get the same answer.
MHz = GHz × 1000
Worked example
Convert 15 GHz to megahertz:
15 GHz = 15,000 MHz
GHz to MHz conversion chart
Use this GHz to MHz table for quick reference without typing anything.
| gigahertz (GHz) | megahertz (MHz) |
|---|---|
| 0.01 GHz | 10 MHz |
| 0.1 GHz | 100 MHz |
| 1 GHz | 1,000 MHz |
| 2 GHz | 2,000 MHz |
| 3 GHz | 3,000 MHz |
| 5 GHz | 5,000 MHz |
| 10 GHz | 10,000 MHz |
| 20 GHz | 20,000 MHz |
| 50 GHz | 50,000 MHz |
| 100 GHz | 100,000 MHz |
| 1,000 GHz | 1,000,000 MHz |
What is a gigahertz?
A gigahertz is one billion cycles per second — the unit used for CPU clock speeds and Wi-Fi bands.
What is a megahertz?
A megahertz is one million cycles per second. FM radio, memory bus speeds and older CPU clocks are measured in megahertz.
Frequently asked questions
How many MHz are in a gigahertz?
1 GHz equals 1,000 MHz. Going the other way, 1 MHz is 0.001 GHz.
How do you convert GHz to MHz?
To convert gigahertz to megahertz, multiply the gigahertz value by 1000. You can also divide by 0.001 to get the same answer.
What is 10 GHz in MHz?
10 GHz equals 10,000 MHz. The conversion chart on this page lists the other values people look up most often.
Related frequency conversions
Convert GHz to other units
Convert other units to MHz
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