Radar Line-of-Sight (Radio Horizon) Range Calculator

Calculate line-of-sight range and wavelength for a given radar antenna and target height in a standard atmosphere (4/3 earth radius).

Radar antenna height25 m

2 m200 m

Target altitude100 m

5 m15,000 m

Operating frequency

Radar radio horizon20.6

Target radio horizon41.2

Line-of-sight range (km)61.8

Line-of-sight range (nautical miles)33.4

Wavelength (cm)10.0

Explore radar systems

The calculation gives only the geometric line of sight; actual detection range depends on the radar equation, target radar cross-section, antenna gain, atmospheric losses and clutter. It is for information and education and is not a product performance commitment.

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