MHz to GHz Converter
Convert megahertz to gigahertz instantly. 1 MHz = 0.001 GHz, worked steps and a full reference table.
How to use it
- Type the value in megahertz — 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 MHz | 0.001 GHz |
| 5 MHz | 0.005 GHz |
| 10 MHz | 0.01 GHz |
| 100 MHz | 0.1 GHz |
One megahertz equals 0.001 gigahertzes (GHz). To convert megahertzes to gigahertzes, multiply by 0.001; to go back the other way, multiply by 1000 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 megahertzes and gigahertzes actually measure
Megahertz (MHz) — A megahertz is a million hertz. FM radio, older processor speeds and RF work.
Gigahertz (GHz) — A gigahertz is a billion hertz. Processor clocks, Wi-Fi bands and mobile networks.
MHz to GHz conversion table
The most common values, worked out in advance. Anything not listed can be typed straight into the converter.
| MHz | GHz |
|---|---|
| 1 MHz | 0.001 GHz |
| 2 MHz | 0.002 GHz |
| 5 MHz | 0.005 GHz |
| 10 MHz | 0.01 GHz |
| 25 MHz | 0.025 GHz |
| 50 MHz | 0.05 GHz |
| 100 MHz | 0.1 GHz |
How to convert megahertzes to gigahertzes by hand
Multiply the number of megahertzes by 0.001.
For example, 25 MHz × 0.001 = 0.025 GHz.
Going the other way, divide by 0.001 — or multiply by 1000, 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 GHz are in 1 MHz?
1 MHz equals exactly 0.001 GHz. Multiply any value in megahertz by 0.001 to get gigahertz.
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