Calculators

Frequency and Wavelength
f		MHz	λ		ft	λ		m
k		%	+		in	k		%
c	299792458	m/s	k		%	c	299792458	m/s
			c	299792458	m/s
λ =	9.893	m	λ =	9.893	m	λ =	32' 5-1/2"	ft
λ =	32' 5-1/2"		f =	20.000	MHz	f =	20.000	MHz
λ/2 =	16' 2-3/4"		f/2 =	10.000	MHz	f/2 =	10.000	MHz
λ/4 =	8' 1-3/8"		f/4 =	5.000	MHz	f/4 =	5.000	MHz

Typical values for k
100%	Vacuum
95%	Dipole element
85%	LMR-400
84%	LMR-240
66%	RG-58 (Belden 8259, 8240)
66%	RG-59 (Belden 8241)