Convert Gigahertz (GHz) to Hertz (Hz)

1 gigahertz equals 1 × 10⁹ hertz.

Formula: Hz = GHz × 1 × 10⁹

Gigahertz to Hertz Converter

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How to Convert Gigahertz to Hertz

1 gigahertz = 1 × 109 hertz

Hertz = Gigahertz × 1 × 109

Example: 1 GHz × 1 × 109 = 1 × 109 Hz

Reverse Conversion

To convert hertz back to gigahertz:

  • Remember, 1 hertz equals 1 × 10-9 gigahertz.
  • To convert 1 × 109 Hz to GHz, multiply 1 × 109 x 1 × 10-9, resulting in 1 GHz.

Common Gigahertz to Hertz Conversions

Gigahertz to Hertz (Part 1)
Gigahertz Hertz Actions
1 gigahertz 1 × 109 hertz
2.4 gigahertz 2.4 × 109 hertz
Gigahertz to Hertz (Part 2)
Gigahertz Hertz Actions
5 gigahertz 5 × 109 hertz
10 gigahertz 1 × 1010 hertz

Gigahertz to hertz Conversion Table

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

Gigahertz to Hertz Table
0.0001 to 12

Gigahertz Hertz Actions
0.0001 GHz 100000 Hz
0.00025 GHz 250000 Hz
0.0005 GHz 500000 Hz
0.001 GHz 1000000 Hz
0.0025 GHz 2500000 Hz
0.005 GHz 5000000 Hz
0.01 GHz 10000000 Hz
0.025 GHz 2.5 × 107 Hz
0.05 GHz 5 × 107 Hz
0.1 GHz 1 × 108 Hz
14 GHz 2.5 × 108 Hz
12 GHz 5 × 108 Hz

Gigahertz to Hertz Table
1 to 100000

Gigahertz Hertz Actions
1 GHz 1 × 109 Hz
12 GHz 2.5 × 109 Hz
5 GHz 5 × 109 Hz
10 GHz 1 × 1010 Hz
25 GHz 2.5 × 1010 Hz
50 GHz 5 × 1010 Hz
100 GHz 1 × 1011 Hz
250 GHz 2.5 × 1011 Hz
500 GHz 5 × 1011 Hz
1000 GHz 1 × 1012 Hz
2500 GHz 2.5 × 1012 Hz
5000 GHz 5 × 1012 Hz
10000 GHz 1 × 1013 Hz
25000 GHz 2.5 × 1013 Hz
50000 GHz 5 × 1013 Hz
100000 GHz 1 × 1014 Hz

Hertz to Gigahertz Table
10000 to 5 × 107

Hertz Gigahertz Actions
10000 Hz 1 × 10-5 GHz
25000 Hz 2.5 × 10-5 GHz
50000 Hz 5 × 10-5 GHz
100000 Hz 0.0001 GHz
250000 Hz 0.00025 GHz
500000 Hz 0.0005 GHz
1000000 Hz 0.001 GHz
2500000 Hz 0.0025 GHz
5000000 Hz 0.005 GHz
10000000 Hz 0.01 GHz
2.5 × 107 Hz 0.025 GHz
5 × 107 Hz 0.05 GHz

Hertz to Gigahertz Table
1 × 108 to 1 × 1013

Hertz Gigahertz Actions
1 × 108 Hz 0.1 GHz
2.5 × 108 Hz 14 GHz
5 × 108 Hz 12 GHz
1 × 109 Hz 1 GHz
2.5 × 109 Hz 12 GHz
5 × 109 Hz 5 GHz
1 × 1010 Hz 10 GHz
2.5 × 1010 Hz 25 GHz
5 × 1010 Hz 50 GHz
1 × 1011 Hz 100 GHz
2.5 × 1011 Hz 250 GHz
5 × 1011 Hz 500 GHz
1 × 1012 Hz 1000 GHz
2.5 × 1012 Hz 2500 GHz
5 × 1012 Hz 5000 GHz
1 × 1013 Hz 10000 GHz

Definition of Gigahertz

Gigahertz: Microwave and Computing Frequency Unit

The gigahertz (symbol: GHz) is a unit of frequency equal to one billion hertz (10⁹ Hz). It is the standard unit for describing modern processor clock speeds, Wi-Fi frequencies, and microwave communications. The 2.4 GHz and 5 GHz bands are familiar to anyone who has configured a Wi-Fi router.

Conversions to Other Units of Measurement:

  1. Hertz (Hz): 1 GHz equals exactly 1,000,000,000 Hz. A 3 GHz processor executes 3 billion clock cycles per second.
  2. Megahertz (MHz): 1 GHz equals exactly 1,000 MHz. This conversion is frequently used when comparing old and new processor specifications.
  3. Kilohertz (kHz): 1 GHz equals 1,000,000 kHz.
  4. Terahertz (THz): 1 GHz equals 0.001 THz. The terahertz gap between microwave and infrared is an active area of research.

Modern smartphones typically have processors clocked between 2-3 GHz, while desktop CPUs can boost above 5 GHz. The unit is also essential in radar, satellite communications, and 5G cellular networks.

Definition
SI decimal multiple of hertz; 1 GHz = 1,000,000,000 Hz = 10⁹ Hz
Common equivalents
  • 1 GHz = 10⁹ Hz (exact)
  • 1 GHz = 1,000 MHz (exact)
  • 1 GHz = 0.001 THz (exact)
Sources

Definition of Hertz

Hertz: The SI Unit of Frequency

The hertz (symbol: Hz) is the SI unit of frequency, defined as one cycle per second. It is named after Heinrich Rudolf Hertz, who first conclusively proved the existence of electromagnetic waves in 1887. One hertz means that an event repeats once per second.

Conversions to Other Units of Measurement:

  1. Kilohertz (kHz): 1 Hz equals 0.001 kHz. Kilohertz is commonly used for audio frequencies and AM radio broadcasting.
  2. Megahertz (MHz): 1 Hz equals 0.000001 MHz. Megahertz is used for FM radio and television broadcasting frequencies.
  3. Gigahertz (GHz): 1 Hz equals 10⁻⁹ GHz. Gigahertz is used for microwave frequencies, Wi-Fi, and modern processor clock speeds.
  4. Revolutions per Minute (rpm): 1 Hz equals 60 rpm. This conversion is fundamental in mechanical and electrical engineering for relating rotational speed to frequency.
  5. Radians per Second (rad/s): 1 Hz equals 2π rad/s (approximately 6.2832 rad/s). This angular frequency is essential in physics and signal processing.

The hertz is fundamental across science and engineering, from describing sound pitch and radio waves to processor clock speeds and power grid frequencies.

Definition
SI unit of frequency; one cycle (or event) per second. Symbol: Hz = s⁻¹
Dimension
T⁻¹ (inverse time)
Common equivalents
  • 1 Hz = 60 rpm (exact)
  • 1 Hz = 2π rad/s ≈ 6.2832 rad/s
  • 1 Hz = 0.001 kHz (exact)
Sources

About the Gigahertz

Modern CPU clock speeds hover around 3-5 GHz because increasing frequency further creates excessive heat. Instead, processors add more cores to increase performance. The highest verified CPU overclock reached 9.008 GHz on an AMD FX-8370 in 2024.

5G cellular networks use multiple frequency bands, including sub-6 GHz bands (similar to 4G) and millimeter wave (mmWave) bands from 24-100 GHz, which offer extremely high speeds but limited range.

About the Hertz

The hertz is named after Heinrich Hertz (1857-1894), who was the first to conclusively demonstrate the existence of electromagnetic waves predicted by James Clerk Maxwell's equations. Hertz's experiments in 1887 used a spark gap transmitter operating at about 50 MHz.

Power grids worldwide operate at either 50 Hz (Europe, Asia, Africa, most of South America) or 60 Hz (North America, parts of South America and Asia). This frequency determines the "hum" you sometimes hear from electrical equipment.

Frequently Asked Questions

How many hertz are in one gigahertz?

One gigahertz equals 1 × 109 hertz. To convert, multiply the gigahertz value by 1 × 109. For the reverse, divide the hertz value by 1 × 109 (or multiply by 1 × 10-9).

What is 10 gigahertz in hertz?

10 gigahertz = 1 × 1010 hertz. This is one of the most commonly searched conversions for this pair.

How precise is the gigahertz-to-hertz conversion?

The factor 1 × 109 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.

Looking for the reverse? Convert Hertz 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
Tiago 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.