July 10, 2026

Calculators

We have started to place calculators relating to EMC and more.. So if need to work out the wavelength of frequencies to dBm to dBuV.

  1. Frequency Wavelength
  2. Wave Impedance Calculator
  3. dBm to dBuV
  4. Amps to dBm
  5. SAR Calculator
  6. Dipole Antenna Length Calculator

More to follow soon..

 

 

A Dipole Antenna Length Calculator is a calculator that estimates how long each side of a dipole antenna should be so that it can efficiently transmit or receive radio signals at a specific frequency. By entering the operating frequency, the calculator provides the total antenna length and the length of each arm, making antenna design faster and more accurate.

For a standard half-wave dipole, the commonly used formula is:

Total length (meters) = 143 ÷ Frequency (MHz)
Length of each side (meters) = 71.5 ÷ Frequency (MHz)

For example, if the operating frequency is 100 MHz:

Total dipole length = 143 ÷ 100 = 1.43 meters
Each arm length = 1.43 ÷ 2 = 0.715 meters

This calculator is widely used by amateur radio operators, electronics engineers, and communication enthusiasts to build antennas that perform efficiently at the desired frequency.

 

Dipole Antenna Length Calculator

Dipole Antenna Length Calculator

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