📏 Wavelength Calculator

Calculate wavelength and antenna element lengths from frequency.

(1.00 = free space; coax ~0.66–0.85)

Full Wave (λ)
Half Wave (λ/2)
Quarter Wave (λ/4)
5/8 Wave
Free-Space Wavelength (no VF)

Common Amateur & SDR Frequencies

Band / UseFrequencyλ/4 (free space)