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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