GHz to MHz Converter
Convert gigahertz to megahertz instantly. 1 GHz = 1000 MHz, worked steps and a full reference table.
How to use it
- Type the value in gigahertz — the result updates as you type.
- Use Swap to flip the direction, or change either dropdown to convert between any two units.
- Click the result to copy it. The URL updates too, so you can bookmark or share the exact conversion.
Examples
| 1 GHz | 1000 MHz |
| 5 GHz | 5000 MHz |
| 10 GHz | 10000 MHz |
| 100 GHz | 100000 MHz |
One gigahertz equals 1000 megahertzes (MHz). To convert gigahertzes to megahertzes, multiply by 1000; to go back the other way, multiply by 0.001 instead.
The converter above does it as you type and shows the working underneath, so you can check the arithmetic rather than take the number on trust.
What gigahertzes and megahertzes actually measure
Gigahertz (GHz) — A gigahertz is a billion hertz. Processor clocks, Wi-Fi bands and mobile networks.
Megahertz (MHz) — A megahertz is a million hertz. FM radio, older processor speeds and RF work.
GHz to MHz conversion table
The most common values, worked out in advance. Anything not listed can be typed straight into the converter.
| GHz | MHz |
|---|---|
| 1 GHz | 1000 MHz |
| 2 GHz | 2000 MHz |
| 5 GHz | 5000 MHz |
| 10 GHz | 10000 MHz |
| 25 GHz | 25000 MHz |
| 50 GHz | 50000 MHz |
| 100 GHz | 100000 MHz |
How to convert gigahertzes to megahertzes by hand
Multiply the number of gigahertzes by 1000.
For example, 25 GHz × 1000 = 25000 MHz.
Going the other way, divide by 1000 — or multiply by 0.001, which is the same thing and easier to do in your head.
Everything runs in your browser
There is no server involved in the calculation. The numbers you type never leave your device, nothing is logged, and the page keeps working with no connection once it has loaded. That is not a marketing line — it is simply how the tool is built, because a calculation like this has no reason to touch a network.
Questions people ask
How many MHz are in 1 GHz?
1 GHz equals exactly 1000 MHz. Multiply any value in gigahertz by 1000 to get megahertz.
Is anything uploaded to a server?
No. The whole calculation happens in your browser. Nothing is sent anywhere, and the page keeps working offline once loaded.
Last updated 18 August 2026