Free online frequency unit converter. Convert between Hz, kHz, MHz, GHz, THz, RPM, and rad/s instantly. Enter a value and see all conversions at once. Runs entirely in your browser.
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FAQ
How do you convert frequency units?
1 kHz = 1000 Hz, 1 MHz = 1000 kHz = 1,000,000 Hz, 1 GHz = 1000 MHz, 1 THz = 1000 GHz. RPM to Hz: Hz = RPM ÷ 60. rad/s to Hz: Hz = rad/s ÷ (2π).
What is a Hertz (Hz)?
Hertz (Hz) is the SI unit of frequency, representing the number of cycles per second. 1 Hz = 1 cycle per second. Named after German physicist Heinrich Hertz.
What is the relationship between MHz and GHz?
1 GHz = 1000 MHz. GHz is commonly used for CPU clock speeds (e.g., 3.5 GHz processor), while MHz is used for radio frequencies (e.g., FM radio 88-108 MHz).
How do you convert RPM to Hz?
RPM (Revolutions Per Minute) represents rotations per minute. To convert to Hz: Hz = RPM ÷ 60. For example, 3600 RPM = 60 Hz. Commonly used in motors and rotating machinery.
What does 44.1 kHz sampling rate mean?
A 44.1 kHz sampling rate means 44,100 audio samples are captured per second — the CD audio standard. Per the Nyquist theorem, this can reproduce frequencies up to 22.05 kHz, covering the full human hearing range (20 Hz - 20 kHz).