Enter the target frequency in MHz or select a practical operating-frequency preset.
The calculator returns the standard starting cut length for a half-wave dipole and the
length of each leg.
Total Dipole Length
65.00 ft
65 ft 0.0 in
Length of Each Leg
32.50 ft
32 ft 6.0 in
Formula Reference
Total dipole length 468 ÷ frequency in MHz = feet
Each leg 234 ÷ frequency in MHz = feet
Cut long, then tune. This is a starting length, not a guaranteed final dimension.
Installed height, nearby structures, wire insulation, feed-point hardware, conductor size, and the
surrounding environment can all shift resonance.
