Frequency Converter
Convert frequency between hertz, kilohertz, megahertz, gigahertz, and RPM. Useful for electronics, signal processing, audio engineering, and mechanical rotation.
Hertz (Hz)
1000000
Kilohertz
1000
Megahertz
1
Gigahertz
0.001
Revolutions/min
60000000
How to use the frequency converter
Hertz = cycles per second. RPM = revolutions per minute, common for engines.
Formula & explanation
Linear scaling through hertz; 1 RPM = 1/60 Hz.
Examples
Wi-Fi 5 GHz = 5 × 10⁹ Hz. 3000 RPM = 50 Hz.
Frequently asked questions
- What is the difference between Hz, kHz, MHz, and GHz?
- They are all units of frequency differing by factors of 1,000: 1 kHz = 1,000 Hz, 1 MHz = 1,000,000 Hz, 1 GHz = 1,000,000,000 Hz.
- How do I convert RPM to Hz?
- Divide RPM by 60. For example, 3,600 RPM ÷ 60 = 60 Hz. This is why AC power in the US runs at 3,600 RPM generators.
- What frequency is human hearing?
- Humans can generally hear sounds from about 20 Hz to 20,000 Hz (20 kHz). The range narrows with age.
- What is the CPU frequency of a typical computer?
- Modern CPUs typically run at 3–5 GHz (3,000–5,000 MHz), meaning the processor executes billions of cycles per second.
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