Convert Kilohertz (kHz) to Gigahertz (GHz)

1 kilohertz equals 1 × 10⁻⁶ gigahertz.

Formula: GHz = kHz × 1 × 10⁻⁶

Kilohertz to Gigahertz Converter

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How to Convert Kilohertz to Gigahertz

1 kilohertz = 1 × 10-6 gigahertz

Gigahertz = Kilohertz × 1 × 10-6

Example: 1 kHz × 1 × 10-6 = 1 × 10-6 GHz

Reverse Conversion

To convert gigahertz back to kilohertz:

  • Remember, 1 gigahertz equals 1000000 kilohertz.
  • To convert 1 × 10-6 GHz to kHz, multiply 1 × 10-6 x 1000000, resulting in 1 kHz.

Common Kilohertz to Gigahertz Conversions

Kilohertz to Gigahertz (Part 1)
Kilohertz Gigahertz Actions
1 kilohertz 1 × 10-6 gigahertz
5 kilohertz 5 × 10-6 gigahertz
10 kilohertz 1 × 10-5 gigahertz
25 kilohertz 2.5 × 10-5 gigahertz
Kilohertz to Gigahertz (Part 2)
Kilohertz Gigahertz Actions
50 kilohertz 5 × 10-5 gigahertz
100 kilohertz 0.0001 gigahertz
500 kilohertz 0.0005 gigahertz
1000 kilohertz 0.001 gigahertz

Kilohertz to gigahertz Conversion Table

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

Kilohertz to Gigahertz Table
100 to 500000

Kilohertz Gigahertz Actions
100 kHz 0.0001 GHz
250 kHz 0.00025 GHz
500 kHz 0.0005 GHz
1000 kHz 0.001 GHz
2500 kHz 0.0025 GHz
5000 kHz 0.005 GHz
10000 kHz 0.01 GHz
25000 kHz 0.025 GHz
50000 kHz 0.05 GHz
100000 kHz 0.1 GHz
250000 kHz 14 GHz
500000 kHz 12 GHz

Kilohertz to Gigahertz Table
1000000 to 1 × 1011

Kilohertz Gigahertz Actions
1000000 kHz 1 GHz
2500000 kHz 12 GHz
5000000 kHz 5 GHz
10000000 kHz 10 GHz
2.5 × 107 kHz 25 GHz
5 × 107 kHz 50 GHz
1 × 108 kHz 100 GHz
2.5 × 108 kHz 250 GHz
5 × 108 kHz 500 GHz
1 × 109 kHz 1000 GHz
2.5 × 109 kHz 2500 GHz
5 × 109 kHz 5000 GHz
1 × 1010 kHz 10000 GHz
2.5 × 1010 kHz 25000 GHz
5 × 1010 kHz 50000 GHz
1 × 1011 kHz 100000 GHz

Gigahertz to Kilohertz Table
0.0001 to 12

Gigahertz Kilohertz Actions
0.0001 GHz 100 kHz
0.00025 GHz 250 kHz
0.0005 GHz 500 kHz
0.001 GHz 1000 kHz
0.0025 GHz 2500 kHz
0.005 GHz 5000 kHz
0.01 GHz 10000 kHz
0.025 GHz 25000 kHz
0.05 GHz 50000 kHz
0.1 GHz 100000 kHz
14 GHz 250000 kHz
12 GHz 500000 kHz

Gigahertz to Kilohertz Table
1 to 100000

Gigahertz Kilohertz Actions
1 GHz 1000000 kHz
12 GHz 2500000 kHz
5 GHz 5000000 kHz
10 GHz 10000000 kHz
25 GHz 2.5 × 107 kHz
50 GHz 5 × 107 kHz
100 GHz 1 × 108 kHz
250 GHz 2.5 × 108 kHz
500 GHz 5 × 108 kHz
1000 GHz 1 × 109 kHz
2500 GHz 2.5 × 109 kHz
5000 GHz 5 × 109 kHz
10000 GHz 1 × 1010 kHz
25000 GHz 2.5 × 1010 kHz
50000 GHz 5 × 1010 kHz
100000 GHz 1 × 1011 kHz

Definition of Kilohertz

Kilohertz: Audio and Radio Frequency Unit

The kilohertz (symbol: kHz) is a unit of frequency equal to 1,000 hertz. It is widely used in audio engineering, radio communications, and electronics. Human hearing ranges from about 0.02 kHz to 20 kHz, making the kilohertz a natural unit for describing audible frequencies.

Conversions to Other Units of Measurement:

  1. Hertz (Hz): 1 kHz equals exactly 1,000 Hz. AM radio stations in the US broadcast in the 535-1705 kHz range.
  2. Megahertz (MHz): 1 kHz equals 0.001 MHz. This conversion is used when comparing audio frequencies with radio spectrum allocations.
  3. Revolutions per Minute (rpm): 1 kHz equals 60,000 rpm. High-speed turbines and dental drills operate at frequencies in the kilohertz range.
  4. Radians per Second (rad/s): 1 kHz equals approximately 6,283.2 rad/s. Used in signal processing and control systems analysis.

The kilohertz is the standard unit for describing audio sampling rates (44.1 kHz for CD quality, 48 kHz for professional audio) and ultrasonic frequencies used in medical imaging.

Definition
SI decimal multiple of hertz; 1 kHz = 1,000 Hz = 10³ Hz
Common equivalents
  • 1 kHz = 1,000 Hz (exact)
  • 1 kHz = 0.001 MHz (exact)
  • 1 kHz = 60,000 rpm (exact)
Sources

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

About the Kilohertz

The standard audio CD uses a sampling rate of 44.1 kHz, chosen because it is slightly more than twice the upper limit of human hearing (20 kHz), satisfying the Nyquist-Shannon sampling theorem. Professional audio typically uses 48 kHz or 96 kHz.

AM radio stations broadcast in the kilohertz range (535-1705 kHz in the Americas). The lower frequency allows AM signals to travel much farther than FM, especially at night when they can bounce off the ionosphere.

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.

Frequently Asked Questions

How many gigahertz are in one kilohertz?

One kilohertz equals 1 × 10-6 gigahertz. To convert, multiply the kilohertz value by 1 × 10-6. For the reverse, divide the gigahertz value by 1 × 10-6 (or multiply by 1000000).

What is 100 kilohertz in gigahertz?

100 kilohertz = 0.0001 gigahertz. This is one of the most commonly searched conversions for this pair.

How precise is the kilohertz-to-gigahertz conversion?

The factor 1 × 10-6 is accurate to 6 significant figures, derived from international measurement standards. Our calculator uses full precision internally.

Looking for the reverse? Convert Gigahertz to Kilohertz

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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.

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