How do I calculate radar range and bearing?

Enter the target position coordinates or bearing and range.

Radar Range Calculator - Maritime Navigation & Target Detection Tool

Radar Plotting Calculator

Calculate distance between two targets or determine a single target's track and speed.

1. Distance Between Two Targets

Target A

Range A (NM)

Bearing A (°)

Target B

Range B (NM)

Bearing B (°)

Two-Target Plot

Target A

Target B

Distance

2. Single Target Track & Speed

Observation 1

Range (NM)

Bearing (°)

Observation 2

Range (NM)

Bearing (°)

Time Interval

Interval between observations (minutes)

Single Target Track Plot

Obs 1 (T1)

Obs 2 (T2)

Track

**Formula Used:** The calculation is based on the Law of Cosines for distance between two points, and vector analysis for determining course and speed. The SVG plot is a visual representation and may not be perfectly to scale for all inputs.