Ham Radio HF/VHF Antenna Lengths Chart

Here is a handy chart for determing 1/4 wave verticals, 1/2 wave dipoles, and full wave loop lengths.
All antenna lengths in the information below are in feet and are the results based on the standard formula of 468 / FMhz = total length in feet.
Loop antenna lengths are based on using 1005 / FMhz = total loop length in feet.
As with any antenna, lengths should be cut longer than formula results and then trim as needed for best swr. The chart covers all ham bands from 160 meters through 2 meters only. Note the lengths for the new 60 meter band frequency to be effective March 5, 2012.

 

Ham Radio HF/VHF Antenna Lengths Chart in Feet
Ham Band (Meters) Frequency
(Mhz)		 1/4 wave 
(Feet)		 1/2 wave
Dipole
(Feet)		 1 wave 
Loop
(Feet)
160 1.800 130′ 0” 260′ 0” 558′ 4”
1.850 126′ 6” 253′ 0” 543′ 3”
1.900 123′ 2” 246′ 4” 528′ 11”
2.000 117′ 0” 234′ 0” 502′ 6”
80 3.500 66′ 10” 133′ 9” 287′ 2”
3.750 62′ 5” 124′ 10” 268′ 0”
3.900 60′ 0” 120′ 0” 257′ 8”
4.000 58′ 6” 117′ 0” 251′ 3”
60
Under new rules effective March 5, 2012 

 

The maximum allowed power level WILL BE 100 Watts PEP (ERP) effective radiated power referenced to a dipole. If another type of antenna is used, the station licensee must maintain a record of either the antenna manufacturer?s data on the antenna gain or calculations of the antenna gain.
The frequencies listed here are the ONLY frequencies hams can use with the appropriate license under the new rules.

 5.330.5 43′ 9” 87′ 8” 188′ 5”
5.346.5 43′ 7” 87′ 5” 188′ 0”
NEW 5.357 — 87′ 4″ —
5.371.5 43′ 5” 87′ 1” 187′ 1”
5.403.5 43′ 3” 86′ 6” 186′ 0”
40 7.000 33′ 5” 66′ 10” 143′ 7”
7.150 32′ 9” 65′ 5” 140′ 7”
7.300 32′ 1” 64′ 1” 137′ 8”
Ham Band (Meters) Frequency
(Mhz)		 1/4 wave  (Feet) 1/2 wave  Dipole
(Feet)		 1 wave  Loop
(Feet)
30 10.100 23′ 2” 46′ 4” 99′ 6”
10.150 23′ 1” 46′ 1” 99′ 0”
20 14.000 16′ 9” 33′ 5” 71′ 9”
14.150 16′ 6” 33′ 1” 71′ 0”
14.300 16′ 4” 32′ 9” 70′ 3”
14.350 16′ 4” 32′ 7” 70′ 0”
17 18.068 12′ 11” 25′ 11” 55′ 7”
18.168 12′ 11” 25′ 9” 55′ 4”
15 21.000 11′ 2” 22′ 3” 47′ 10”
21.200 11′ 0” 22′ 1” 47′ 5”
21.450 10′ 11” 21′ 10” 46′ 10”
12 24.890 9′ 5” 18′ 10” 40′ 5”
24.990 9′ 4” 18′ 9” 40′ 3”
10 28.000 8′ 4” 16′ 9” 35′ 11”
28.500 8′ 3” 16′ 5” 35′ 3”
29.700 7′ 11” 15′ 9” 33′ 10”
Note: For 28.400Mhz use formulas below 
Ham Band (Meters) Frequency
(Mhz)		 1/4 wave (Feet) 1/2 wave  Dipole
(Feet)		 1 wave Loop
(Feet)
6 50.000 4′ 8” 9′ 4” 21′ 1”
54.000 4′ 4” 8′ 8” 18′ 7”
2 144.000 1′ 8” 3′ 3” 7′ 0”
148.000 1′ 7” 3′ 2” 6′ 9”
Antenna length is based on the following formulas:
1/2 wave dipole (feet) = 468 / frequency in Mhz. (1/4 wave, use 234 / frequency in Mhz)
Full wave loop (feet) = 1005 / frequency in Mhz

Cut total wire length slightly longer for connecting insulators/pruning as needed for lowest swr.
 
NU8V - Ray Avatar

NU8V - Ray

I became a Ham Radio Operator in 2024 and I just love the hobby. I earned my General license, then a few weeks later my Extra, and set up a “Ham Shack” with an ICOM 706 (multi-band transceiver), Long wire (HF long-range antenna) Dipole on the porch roof of my house, 2m, 1.5m, 300m, and 70cm antenna on the roof, another quad band antenna next to it that covers 2m,6, 10m, and 70cm, with a QB25 Quad band (two-band transceivers) in the car, a dual band ht by bofeng, a tid radio capable for GMRS, another HF /HT. You get the idea?

Reviewed by: Subject Matter Experts