How do I convert Megahertz to Gigahertz?

Multiply your value in megahertz by 0.001 to get gigahertz. For example, 5 MHz × 0.001 = 0.005 GHz. Use the converter above for any value instantly.

How many Gigahertz are in 1 Megahertz?

1 MHz equals exactly 0.001 GHz. For the reverse, 1 GHz equals 1000 MHz.

How accurate is this Megahertz to Gigahertz converter?

The converter uses the factor 1 MHz = 0.001 GHz, calculated with IEEE 754 double-precision arithmetic accurate to at least 8 significant figures.

What is the formula to convert Megahertz to Gigahertz?

Forward: Gigahertz = Megahertz × 0.001. Reverse: Megahertz = Gigahertz × 1000.

Is this Megahertz to Gigahertz converter free?

Yes. Unitafy is completely free, requires no registration, and works on any device.

Why convert Megahertz to Gigahertz?

Megahertz and Gigahertz are frequency units used in different contexts — electronics, audio, radio, computing, and mechanical engineering all use different frequency scales. Converting between them is essential for cross-disciplinary engineering work.

Megahertz to Gigahertz Converter

Convert megahertz (MHz) to gigahertz (GHz) instantly. 1 MHz = 0.001 GHz.

Enter value

Result

1 Megahertz =

— Gigahertz

From

—

Megahertz to Gigahertz Conversion Table

Megahertz (MHz)	Gigahertz (GHz)
1 MHz	0.001 GHz
10 MHz	0.01 GHz
100 MHz	0.1 GHz
1000 MHz	1 GHz
10000 MHz	10 GHz
100000 MHz	100 GHz

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Quick Answer

Formula: Gigahertz = Megahertz × 0.001

Multiply any megahertz value by 0.001 to get gigahertz.

Reverse: Megahertz = Gigahertz × 1000

Worked Examples

1 GHz CPU

1000 MHz × 0.001 = 1 GHz

1,000 MHz = 1 GHz — first consumer GHz processor.

2.4 GHz WiFi

2400 MHz × 0.001 = 2.4 GHz

2,400 MHz = 2.4 GHz — 2.4 GHz Wi-Fi band.

5 GHz WiFi

5000 MHz × 0.001 = 5 GHz

5,000 MHz = 5 GHz — 5 GHz Wi-Fi band.

3.6 GHz CPU

3600 MHz × 0.001 = 3.6 GHz

3,600 MHz = 3.6 GHz — modern CPU clock speed.

Megahertz to Gigahertz Conversion Table

Common megahertz values — factor: 1 MHz = 0.001 GHz

Megahertz (MHz)	Gigahertz (GHz)	Context
5.000e-05 MHz	5.000e-08 GHz	50 Hz mains
0.0001 MHz	1.000e-07 GHz	100 Hz
0.044 MHz	4.400e-05 GHz	44.1 kHz audio
1 MHz	0.001 GHz	1 MHz
88 MHz	0.088 GHz	FM radio low
100 MHz	0.1 GHz	FM 100 MHz
108 MHz	0.108 GHz	FM radio high
500 MHz	0.5 GHz	500 MHz
1,000 MHz	1 GHz	1 GHz
2,400 MHz	2.4 GHz	2.4 GHz WiFi
5,000 MHz	5 GHz	5 GHz WiFi
1e+04 MHz	10 GHz	10 GHz
100,000 MHz	100 GHz	100 GHz mmWave
1,000,000 MHz	1,000 GHz	1 THz
1,000,000,000 MHz	1,000,000 GHz	1 PHz

Mental Math Tricks

÷ 1000 exactly

MHz ÷ 1,000 = GHz.

Key anchors

1,000 MHz = 1 GHz. 2,400 MHz = 2.4 GHz (Wi-Fi). 5,000 MHz = 5 GHz.

Reverse

GHz × 1,000 = MHz.

Who Uses This Conversion?

RF Engineer

Designs antennas, filters, and amplifiers for FM radio and cellular frequencies in MHz.

Computer Engineer

Specifies CPU, memory bus, and GPU clock speeds in MHz and GHz.

Wi-Fi Engineer

Configures 2.4 GHz (2,400 MHz) and 5 GHz (5,000 MHz) wireless networks.

Broadcast Engineer

Manages FM radio station frequencies (88–108 MHz) and channel assignments.

Radar Engineer

Designs weather and air traffic control radar systems operating at hundreds of MHz.

Amateur Radio Operator

Operates on HF (3–30 MHz), VHF (30–300 MHz), and UHF (300–3,000 MHz) bands.

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Frequently Asked Questions

About Megahertz and Gigahertz

Megahertz (MHz)

The megahertz (MHz) equals 1,000,000 Hz and is the dominant frequency unit for FM radio, Wi-Fi, mobile networks, and processor clock speeds. The FM radio band spans 87.5–108 MHz; 2.4 GHz Wi-Fi uses channels in the 2,400–2,500 MHz range.

CPU clock speeds are measured in MHz and GHz: a 1 GHz processor = 1,000 MHz. Memory bus speeds, GPU clocks, and RF transmitters are all specified in MHz. The 4G LTE mobile standard uses frequencies from 700 MHz to 2,600 MHz.

Interesting fact: The first consumer 1 GHz CPU (AMD Athlon) launched in March 2000, reaching what seemed an impossible milestone. Moore's Law had predicted it — and modern CPUs now run at 4,000–6,000 MHz (4–6 GHz).

Gigahertz (GHz)

The gigahertz (GHz) equals 1,000 MHz or 10⁹ Hz. It is the standard unit for modern processor clock speeds, Wi-Fi and 5G frequencies, and microwave communications. Consumer CPUs now operate at 3–6 GHz; 5G networks use bands from 600 MHz to 100 GHz.

GHz frequencies correspond to microwave wavelengths (centimeter to millimeter scale). Microwave ovens operate at 2.45 GHz; Wi-Fi uses 2.4 GHz and 5 GHz; mmWave 5G uses 24–100 GHz. Radar systems span 1–100 GHz depending on application.

Interesting fact: Water molecules resonate at around 22 GHz. Microwave ovens use 2.45 GHz — not the resonant frequency — because it penetrates food more deeply, heating it throughout rather than just at the surface.

About Megahertz to Gigahertz Conversion

Converting megahertz to gigahertz is essential across electronics, audio, radio communications, computing, and mechanical engineering. Frequency units span from sub-Hz seismic waves to THz optical signals — each discipline uses the scale most natural to its applications.

Quick reference: 10 MHz = 0.01 GHz and 1,000 MHz = 1 GHz. Reverse: 1 GHz = 1000 MHz. Exact factor: 1 MHz = 0.001 GHz.

All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.