Convert Gigahertz to Megahertz (GHz to MHz)
1 gigahertz (GHz) = 1000 megahertz (MHz). 1 MHz = 0.001 GHz. Example: 2.4 GHz = 2.4 × 1000 = 2400 MHz.
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1 GHz = 1000 MHz
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk gigahertz to megahertz converter to paste a column from Excel.
How to Convert Gigahertz to Megahertz
- 1 GHz = 1000 MHz
- 1 MHz = 0.001 GHz
- Example: convert 2.4 GHz to MHz: 2.4 GHz = 2.4 × 1000 MHz = 2400 MHz
Formula
MHz = GHz × 1000
Derivation from SI units:
- 1 GHz = 10⁹ Hz.
- 1 MHz = 10⁶ Hz.
- 1 GHz = 1000000000 Hz ÷ 1000000 Hz per MHz = 1000 MHz
Both units are defined exactly, so the factor is exact. Gigahertz definition: gigahertz; Megahertz definition: megahertz.
Worked examples
- The 2.4 GHz band is 2400 MHz.
2.4 GHz × 1000 = 2400 MHz - A 5 GHz Wi-Fi band starts near 5000 MHz.
5 GHz × 1000 = 5000 MHz
Gigahertz to Megahertz conversion table
| Gigahertz (GHz) | Megahertz (MHz) |
|---|---|
| 1 GHz | 1000 MHz |
| 2.4 GHz | 2400 MHz |
| 3 GHz | 3000 MHz |
| 3.5 GHz | 3500 MHz |
| 4 GHz | 4000 MHz |
| 5 GHz | 5000 MHz |
| 5.8 GHz | 5800 MHz |
| 6 GHz | 6000 MHz |
| 28 GHz | 28000 MHz |
| 60 GHz | 60000 MHz |
Where it's used
Frequencies in gigahertz are converted to megahertz for radio channel plans, spectrum analysers and memory or bus clocks quoted in MHz. Multiply by 1000.
Gigahertz to other frequency units
| Conversion | 1 GHz equals |
|---|---|
| gigahertz to megahertz | 1000 MHz |
| gigahertz to hertz | 1000000000 Hz |
| gigahertz to revolution per minute | 60000000000 rpm |
| gigahertz to kilohertz | 1000000 kHz |
| gigahertz to radian per second | 6283185307 rad/s |
| gigahertz to revolution per second | 1000000000 rps |
| gigahertz to degree per second | 360000000000 °/s |
| gigahertz to beat per minute | 60000000000 bpm |
Show 1 more units
| gigahertz to terahertz | 0.001 THz |
|---|
Frequently asked questions
How many MHz is 2.4 GHz?
2400 MHz; Wi-Fi channels 1–13 sit between 2412 and 2472 MHz.
How many megahertz are in 1 gigahertz?
1 GHz = 1000 MHz.
How do I convert gigahertz to megahertz?
Multiply the value in GHz by 1000. For example, 2.4 GHz × 1000 = 2400 MHz.
Is the GHz to MHz conversion exact?
Yes. Both units are defined exactly, and 1 GHz is exactly 1000 MHz.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Gigahertz to Megahertz (GHz to MHz). Retrieved October 25, 2026, from https://scientificconverters.com/frequency/gigahertz-to-megahertz/
IEEE
Scientific Converters, "Convert Gigahertz to Megahertz (GHz to MHz)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/frequency/gigahertz-to-megahertz/