Frequency Converter | Hz kHz MHz GHz

Frequency Converter

Convert Hz, kHz, MHz, GHz with period and wavelength calculator

Quick Presets

Convert Frequency

Period (Time per cycle)
1 ms
Wavelength: 300 km (radio wave)

Musical Notes (A4 = 440 Hz)

Common Frequencies

Human hearing (low)20 Hz
Human hearing (high)20 kHz
Musical A4 note440 Hz
AC power (US)60 Hz
AC power (EU)50 Hz
AM radio (low)540 kHz
FM radio (low)88 MHz
WiFi / Bluetooth2.4 GHz
WiFi 5 GHz5 GHz
Visible light (red)~400 THz
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