Frequency, Wavelength and Power Calculators

Every ZCG antenna is tuned to a specific frequency band, and everything downstream of that, dipole length, mount height, mast section, tuning point, comes back to the wavelength at that frequency. This calculator handles that conversion both ways, plus the power side: working out your transmitter's output in whichever unit your equipment or spec sheet uses.

Enter a frequency to get wavelength in metres, centimetres, feet and inches, along with the full, half, quarter and 5/8 wave lengths used most often when sizing collinear, dipole and monopole antennas, handy for checking an antenna's tuned length against its rated band. Enter a power value to convert between dBm and the standard watt units, useful for confirming a transmitter or amplifier's output sits within an antenna's maximum input power rating before you connect it.