Frequency Units
Convert between Hz, kHz, MHz, GHz, RPM, and more frequency units.
Electronics & Computing
Perfect for CPU speeds, radio frequencies, and wave calculations.
Cycles Per Second
Accurate conversions for oscillations, rotations, and wave frequencies.
Understanding Frequency Conversion
Frequency measures how often a repeating event occurs per unit of time. The SI unit of frequency is the <strong>Hertz (Hz)</strong>, equal to one cycle per second. Common multiples include <strong>kilohertz (kHz)</strong> for audio signals, <strong>megahertz (MHz)</strong> for radio and CPU clock speeds, and <strong>gigahertz (GHz)</strong> for modern processors and wireless communications.
Frequency is fundamental to electronics, telecommunications, music, physics, and engineering. Whether you're tuning a radio station (measured in MHz), checking your CPU speed (GHz), measuring motor rotations (RPM), or setting a musical tempo (BPM), accurate frequency conversion is essential for precision work across disciplines.
Common Usage Examples
- Radio & TV Broadcasting: Converting station frequencies between kHz, MHz, and GHz bands
- CPU & Computing: Comparing processor clock speeds in MHz and GHz
- Audio Engineering: Working with sound frequencies from 20 Hz to 20 kHz
- Motor & Machinery: Converting RPM to Hz for rotational speed analysis
- Music Production: Converting BPM to Hz for tempo and rhythm calculations
- Wireless Networks: Understanding Wi-Fi and 5G frequency bands in GHz
Frequently Asked Questions
How do I convert MHz to GHz?
Divide the MHz value by 1,000. For example, 2,400 MHz = 2.4 GHz. This is commonly used when discussing Wi-Fi frequencies (2.4 GHz and 5 GHz bands).
What is the difference between Hz and RPM?
Both measure repetition rate, but Hz counts cycles per second while RPM counts revolutions per minute. To convert RPM to Hz, divide by 60. For example, 3,600 RPM = 60 Hz.
What frequencies can humans hear?
The human ear can typically detect sounds between 20 Hz and 20,000 Hz (20 kHz). Frequencies below 20 Hz are called infrasound, and above 20 kHz are called ultrasound.
How fast is a 3.5 GHz processor in Hz?
A 3.5 GHz processor operates at 3,500,000,000 Hz (3.5 billion cycles per second). Each cycle represents one basic operation the processor can perform.