Amateur Radio Antenna Length Chart in Feet and Meters

Antenna Length Chart

For those of us who build our own antennas, here's a handy, concise guide to making an antenna perfectly measured for your band of choice.  Of course, local environmental and ground factors will modify your antenna design.

Here's the link if you wish to pursue the matter further:

 https://www.qsl.net/w/w7lk/site/antennachart.htm

Here's the full chart for your reference:

Antenna Length Chart in Feet and Meters


Antenna Length Chart in Feet and Meters
 
Ham BandFrequency
(Mhz)
1/4 λ
(Feet)
1/2 λ
Dipole
(Feet
)
1 λ
Loop
(Feet)
 1/4 λ
(Meters)
1/2 λ
Dipole
(Meters)
1 λ
Loop
(Meters)
 
1601.800130' 0''260' 0''558' 4'' 39.679.3170.2
1.850126' 6''253' 0''543' 3''38.677.1165.6
1.900123' 2''246' 4''528' 11''37.575.1161.2
2.000117' 0''234' 0''502' 6''35.771.3153.2
 
803.50066' 10''133' 9''287' 2'' 20.440.887.5
3.75062' 5''124' 10''268' 0''19.038.081.7
3.90060' 0''120' 0''257' 8''18.336.678.5
4.00058' 6''117' 0''251' 3''17.835.776.6
 
605.330.543' 9''87' 8''188' 5'' 13.426.857.5
5.346.543' 7''87' 5''188' 0''13.326.757.3
5.366.543' 6''87' 2''187' 3''13.326.657.1
5.371.543' 5''87' 1''187' 1''13.226.557.0
5.403.543' 3''86' 6''186' 0''13.226.456.7
 
407.00033' 5''66' 10''143' 7'' 10.220.443.8
7.15032' 9''65' 5''140' 7''10.020.042.8
7.30032' 1''64' 1''137' 8''9.819.542.0
 

 

 

 

Ham BandFrequency
(Mhz)
1/4 λ
(Feet)
1/2 λ
Dipole
(Feet
)
1 λ
Loop
(Feet)
 1/4 λ
(Meters)
1/2 λ
Dipole
(Meters)
1 λ
Loop
(Meters)
3010.10023' 2''46' 4''99' 6'' 7.114.130.3
10.15023' 1''46' 1''99' 0''7.014.130.2
 
2014.00016' 9''33' 5''71' 9'' 5.110.221.9
14.15016' 6''33' 1''71' 0''5.010.121.6
14.30016' 4''32' 9''70' 3''5.010.021.4
14.35016' 4''32' 7''70' 0''5.09.921.3
 
1718.06812' 11''25' 11''55' 7'' 3.97.917.0
18.16812' 11''25' 9''55' 4''3.97.916.9
 
1521.00011' 2''22' 3''47' 10'' 3.46.814.6
21.20011' 0''22' 1''47' 5''3.46.714.4
21.45010' 11''21' 10''46' 10''3.36.714.3
 
1224.8909' 5''18' 10''40' 5'' 2.95.712.3
24.9909' 4''18' 9''40' 3''2.95.712.3
 
1028.0008' 4''16' 9''35' 11'' 2.55.110.9
28.5008' 3''16' 5''35' 3''2.55.010.7
29.7007' 11''15' 9''33' 10''2.44.810.3
 

 

 

 

Ham BandFrequency
(Mhz)
1/4 λ
(Feet)
1/2 λ
Dipole
(Feet
)
1 λ
Loop
(Feet)
 1/4 λ
(Meters)
1/2 λ
Dipole
(Meters)
1 λ
Loop
(Meters)
650.0004' 8''9' 4''21' 1'' 1.42.96.1
54.0004' 4''8' 8''18' 7''1.32.65.7
 
2144.0001' 8''3' 3''7' 0'' 0.51.02.1
148.0001' 7''3' 2''6' 9''0.51.02.1
 
Antenna length based on the following formulars:
1/2 λ dipole (feet)= 468 / frequency in Mhz.
1/2 λ dipole (meters) = 142.65 / frequency in Mhz
Full wave loop (feet) = 1005 / frequency in Mhz
Full wave loop (meters) = 306.32 / frequency in Mhz
Cut wire slightly longer for connecting insulators and pruning.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

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