Dipole Antenna Calculator - Free Online Tool

Calculate dipole antenna lengths for half-wave, full-wave, and quarter-wave configurations.

Includes velocity factor adjustments and common ham radio bands.

Show this tool on your website

Frequently Asked Questions

Common questions about the Dipole Antenna Calculator - Free Online Tool

VSWR (Voltage Standing Wave Ratio) indicates antenna/transmission line matching. 1:1 is perfect, under 2:1 is acceptable for most applications.