How many MHz is 1 GHz?
1 GHz equals 1,000 MHz.
Frequency conversion
MHz to GHz converter calculator
Last updated:
1 GHz equals exactly 1,000 MHz. To convert MHz to GHz, divide by 1,000. A 3,200 MHz CPU clock runs at 3.2 GHz; 5,800 MHz DDR5 RAM runs at 5.8 GHz.
Featured mhz to ghz converter answer
MHz
1 MHz
GHz converter
0.001 GHz
Formula: 1,000 MHz = 1 GHz. Open the live calculator to convert any value.
Formula
1,000 MHz = 1 GHz
Both prefixes follow the SI decimal system: 1 GHz = 10^9 Hz, 1 MHz = 10^6 Hz, so 1 GHz = 1,000 MHz. Frequency units don't use binary prefixes.
Common values
| From | To |
|---|---|
| 1 MHz | 0.001 GHz |
| 100 MHz | 0.1 GHz |
| 500 MHz | 0.5 GHz |
| 1,000 MHz | 1 GHz |
| 1,600 MHz | 1.6 GHz |
| 2,400 MHz | 2.4 GHz (Wi-Fi 2.4 band) |
| 3,000 MHz | 3 GHz |
| 3,200 MHz | 3.2 GHz |
| 5,000 MHz | 5 GHz (Wi-Fi 5 band) |
| 6,000 MHz | 6 GHz (Wi-Fi 6E/7) |
Background
Megahertz and gigahertz appear in CPU clocks, RAM speed, radio bands, and oscillator specs. Wi-Fi bands cluster around 2.4 GHz and 5 GHz (and 6 GHz for Wi-Fi 6E/7). FM radio runs 88-108 MHz; cellular 5G uses ranges from sub-GHz up to 39 GHz (mmWave).
Common use cases
- Translate processor, memory, or RF specs between MHz and GHz labels.
- Check whether a frequency range or component sheet is written in the unit you expect.
- Compare electronics documentation without doing repeated decimal shifts by hand.
Frequently asked questions
Is a 5 GHz CPU faster than a 5,000 MHz CPU?
They're the same speed. 5 GHz and 5,000 MHz describe the same clock rate.
Why is Wi-Fi 5 GHz faster than 2.4 GHz?
Higher frequencies carry more bandwidth and have less crowding because more channels fit in the band. The tradeoff is shorter range: 5 GHz signals don't pass through walls as easily as 2.4 GHz.
Does higher GHz always mean faster?
Not always. CPU performance depends on clock speed, core count, instructions-per-clock (IPC), and cache. A modern 3 GHz processor often beats an older 5 GHz one because of IPC and core-count gains.
What is THz, and when is it used?
1 THz = 1,000 GHz. Terahertz appears in infrared spectroscopy and emerging high-bandwidth wireless research. It doesn't show up in consumer specs yet.