2 m Dipole Length Calculator

This tool calculates the physical dimensions of a 2 meter dipole antenna.

At 2 meters, the dipole length (L) is 3.12 feet. The length of each element of the dipole (l) is half of that at 1.56 feet.

Formula

The total length (L) of the dipole antenna is calculated as:

L = 468 / f

where f is the frequency in MHz.

f is calculated from the wavelength. For 2 m the frequency is 149.9 MHz.

The length of each arm of the dipole

l = L/2

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