Convert Gigahertz (GHz) to Megahertz (MHz)

Q: How many MHz are in 1 GHz?

Exactly 1,000 MHz. This is a precise SI prefix conversion: giga (10&sup9;) ÷ mega (10&sup6;) = 1,000. To convert GHz to MHz, multiply by 1,000. To convert MHz to GHz, divide by 1,000. For example: 2.4 GHz = 2,400 MHz, and 5,800 MHz = 5.8 GHz.

Q: What frequency range does 5G use?

5G uses two frequency ranges: FR1 (sub-6 GHz): 410 MHz to 7,125 MHz, providing wide coverage. FR2 (mmWave): 24,250 MHz to 52,600 MHz (24.25-52.6 GHz), providing ultra-fast speeds over short distances. Most current 5G deployments use FR1 bands around 3.5 GHz (3,500 MHz).

Q: Is a higher GHz processor always faster?

Not necessarily. Clock speed (GHz) is one factor in CPU performance. A 3.5 GHz processor executes 3,500 million cycles per second, but modern CPUs also vary in instructions per cycle (IPC), core count, and architecture. A newer 3.0 GHz chip may outperform an older 4.0 GHz chip due to better IPC and efficiency.

1 gigahertz equals 1000 megahertz.

Formula: MHz = GHz × 1000

Gigahertz to Megahertz Converter

What Is a Gigahertz?

The gigahertz (GHz) equals 1,000,000,000 hertz. It is used for CPU clock speeds, microwave frequencies, and wireless communication bands.

What Is a Megahertz?

The megahertz (MHz) equals 1,000,000 hertz. It is used for FM radio, older CPU speeds, and RF specifications.

Gigahertz to Megahertz Formula

The conversion formula is:

MHz = GHz × 1,000

Exact: 1 GHz = 1,000 MHz by definition.

Worked Example

Convert 2.4 gigahertz (2.4 GHz (Wi-Fi frequency)):

Calculate: 2.4 → 2,400 megahertz

Common Use Cases

This conversion appears constantly in technology and telecommunications:

Wi-Fi and wireless networking: The 2.4 GHz band (2,400-2,483.5 MHz) and 5 GHz band (5,150-5,850 MHz) are specified in MHz for channel allocation but marketed in GHz. Wi-Fi 6E adds the 6 GHz band (5,925-7,125 MHz), requiring engineers to convert between units for channel planning.
5G and cellular networks: 5G operates across two ranges — sub-6 GHz (450 MHz to 6 GHz) and mmWave (24.25-52.6 GHz). Regulatory filings and spectrum auctions use MHz, while marketing materials use GHz, creating a constant need for conversion.
CPU and memory specifications: Processor clock speeds (3.5 GHz), RAM frequencies (DDR5 at 4,800 MHz = 4.8 GHz), and bus speeds mix GHz and MHz. Overclocking communities routinely convert between units when comparing benchmarks.
Radio frequency engineering: Radar systems, satellite communications, and radio astronomy use frequency bands defined in both GHz and MHz. The L-band (1-2 GHz = 1,000-2,000 MHz) and C-band (4-8 GHz) are standard references in RF engineering.

Frequently Asked Questions

How many MHz are in 1 GHz?

Exactly 1,000 MHz. This is a precise SI prefix conversion: giga (10&sup9;) ÷ mega (10&sup6;) = 1,000. To convert GHz to MHz, multiply by 1,000. To convert MHz to GHz, divide by 1,000. For example: 2.4 GHz = 2,400 MHz, and 5,800 MHz = 5.8 GHz.

Why is 2.4 GHz Wi-Fi also called 2,400 MHz?

They are the same frequency expressed in different units. The 2.4 GHz Wi-Fi band spans 2,400-2,483.5 MHz. Channel assignments within this band are specified in MHz (e.g., Channel 1 = 2,412 MHz, Channel 6 = 2,437 MHz). The "2.4 GHz" label is a rounded marketing simplification of this MHz range.

What frequency range does 5G use?

5G uses two frequency ranges: FR1 (sub-6 GHz): 410 MHz to 7,125 MHz, providing wide coverage. FR2 (mmWave): 24,250 MHz to 52,600 MHz (24.25-52.6 GHz), providing ultra-fast speeds over short distances. Most current 5G deployments use FR1 bands around 3.5 GHz (3,500 MHz).

Is a higher GHz processor always faster?

Not necessarily. Clock speed (GHz) is one factor in CPU performance. A 3.5 GHz processor executes 3,500 million cycles per second, but modern CPUs also vary in instructions per cycle (IPC), core count, and architecture. A newer 3.0 GHz chip may outperform an older 4.0 GHz chip due to better IPC and efficiency.

Common Gigahertz to Megahertz Conversions

Gigahertz to Megahertz (Part 1)

Gigahertz	Megahertz	Actions
0.9 gigahertz	900 megahertz
1 gigahertz	1000 megahertz
2.4 gigahertz	2400 megahertz

Gigahertz to Megahertz (Part 2)

Gigahertz	Megahertz	Actions
3 12 gigahertz	3500 megahertz
5 gigahertz	5000 megahertz
10 gigahertz	10000 megahertz

Gigahertz to megahertz Conversion Table

Reference table with common gigahertz to megahertz conversions. All values calculated with high precision.

Gigahertz to Megahertz Table
0.0001 to 12

Gigahertz	Megahertz	Actions
0.0001 GHz	0.1 MHz
0.00025 GHz	14 MHz
0.0005 GHz	12 MHz
0.001 GHz	1 MHz
0.0025 GHz	2 12 MHz
0.005 GHz	5 MHz
0.01 GHz	10 MHz
0.025 GHz	25 MHz
0.05 GHz	50 MHz
0.1 GHz	100 MHz
14 GHz	250 MHz
12 GHz	500 MHz

Gigahertz to Megahertz Table
1 to 100000

Gigahertz	Megahertz	Actions
1 GHz	1000 MHz
2 12 GHz	2500 MHz
5 GHz	5000 MHz
10 GHz	10000 MHz
25 GHz	25000 MHz
50 GHz	50000 MHz
100 GHz	100000 MHz
250 GHz	250000 MHz
500 GHz	500000 MHz
1000 GHz	1000000 MHz
2500 GHz	2500000 MHz
5000 GHz	5000000 MHz
10000 GHz	10000000 MHz
25000 GHz	2.5 × 10⁷ MHz
50000 GHz	5 × 10⁷ MHz
100000 GHz	1 × 10⁸ MHz

Megahertz to Gigahertz Table
0.1 to 500

Megahertz	Gigahertz	Actions
0.1 MHz	0.0001 GHz
14 MHz	0.00025 GHz
12 MHz	0.0005 GHz
1 MHz	0.001 GHz
2 12 MHz	0.0025 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
250 MHz	14 GHz
500 MHz	12 GHz

Megahertz to Gigahertz Table
1000 to 1 × 10⁸

Megahertz	Gigahertz	Actions
1000 MHz	1 GHz
2500 MHz	2 12 GHz
5000 MHz	5 GHz
10000 MHz	10 GHz
25000 MHz	25 GHz
50000 MHz	50 GHz
100000 MHz	100 GHz
250000 MHz	250 GHz
500000 MHz	500 GHz
1000000 MHz	1000 GHz
2500000 MHz	2500 GHz
5000000 MHz	5000 GHz
10000000 MHz	10000 GHz
2.5 × 10⁷ MHz	25000 GHz
5 × 10⁷ MHz	50000 GHz
1 × 10⁸ MHz	100000 GHz

Looking for the reverse? Convert Megahertz to Gigahertz

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Conversion factors verified against NIST, BIPM, ISO 80000-3 1 Hz = 1/s by definition (SI, BIPM). Last reviewed: March 2026

By Adilson Fernandes

Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.