MHz to GHz
Convert megahertz to gigahertz instantly — type a value and read the result, with the exact formula shown.
Example
1 MHz = 0.001 GHz, 5 MHz = 0.005 GHz, 10 MHz = 0.01 GHz.
How it works
Gigahertz = Megahertz × 0.001. Every value is converted through a single hertz base unit using internationally defined conversion factors, so any from/to pair stays consistent.
Good to know
Converting megahertz to gigahertz comes up constantly when you compare hardware specs. A CPU advertised at "3500 MHz" is the same chip as one listed at "3.5 GHz," and a Wi-Fi radio described as "5000 MHz" is just the familiar 5 GHz band written in smaller units. The conversion lets you line up RAM speeds, processor clocks, radio bands, and oscillator ratings that vendors quote in different units on the same spec sheet.
Both units are part of the metric (SI) system, so there is no imperial-versus-metric mismatch here — only a shift in prefix. "Mega" means one million hertz and "giga" means one billion hertz, so a gigahertz is exactly 1,000 times larger than a megahertz. Because both are decimal SI steps, the factor is always a clean power of ten rather than an awkward number like 2.54.
The rule of thumb is simply "move the decimal point three places to the left." 2400 MHz becomes 2.4 GHz; 866 MHz becomes 0.866 GHz; 100 MHz becomes 0.1 GHz. If you can divide by 1,000 in your head, you never need a calculator for this one.
The most common mistake is slipping a factor of 1,000 in the wrong direction — multiplying when you should divide. Going from the smaller unit (MHz) to the larger unit (GHz) the number must get smaller, so 2400 MHz is 2.4 GHz, never 2,400,000 GHz. Also watch trailing precision: rounding 1499 MHz to "1.5 GHz" is fine for casual reading but can hide a real 1 MHz difference that matters in tuning a radio or matching a memory timing.
Frequently asked questions
How do you convert megahertz to gigahertz?
Multiply the number of megahertzs by 0.001 to get gigahertzs. For example, 1 MHz = 0.001 GHz.
What is 1 megahertz in gigahertzs?
1 megahertz equals 0.001 gigahertzs (1 MHz = 0.001 GHz).
How many megahertzs are in 1 gigahertz?
There are 1,000 megahertzs in 1 gigahertz.
Is this converter free and private?
Yes. It runs entirely in your browser, so your inputs never leave your device, there is no sign-up, and it works offline once loaded.
Are the conversions exact?
Conversions use internationally defined factors and are exact where the definitions are exact (for example, 1 inch = 2.54 cm). Displayed results are rounded for readability.
People also ask
How many GHz is 1000 MHz?
1000 MHz equals exactly 1 GHz, because there are 1,000 megahertz in every gigahertz.
What is 2400 MHz in GHz?
2400 MHz is 2.4 GHz. You divide by 1,000, which is the same as moving the decimal point three places to the left.
Is 5000 MHz the same as 5 GHz?
Yes. 5000 MHz and 5 GHz are identical frequencies, which is why the Wi-Fi 5 GHz band is sometimes listed as 5000 MHz.
Why are CPU speeds shown in GHz but some chips in MHz?
Modern processors run in the billions of cycles per second, so GHz is more readable (3.5 GHz instead of 3500 MHz). Older or low-power chips, and many memory modules, are still quoted in MHz because their clocks fall below 1 GHz or vendors keep legacy labeling.
How do I convert MHz to GHz without a calculator?
Just divide the MHz value by 1,000, or move the decimal point three places to the left. For example, 800 MHz becomes 0.8 GHz.
Is MHz bigger or smaller than GHz?
MHz is smaller. One gigahertz equals 1,000 megahertz, so a GHz figure will always be a smaller-looking number than the same frequency in MHz.
What is 100 MHz in GHz?
100 MHz equals 0.1 GHz, since you divide 100 by 1,000.
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