Azimuth Calculator

Point A

Point B

A — B — azimuth 0°

Azimuth (Bearing)
--.--°
Distance
---- km
Narendra Kumar
Created by
Narendra Kumar
 Reema Singh
Verified by
Reema Singh
Last Updated: 28-02-2026

What is Azimuth?

Azimuth is the horizontal angle measured clockwise from true north to a target direction, expressed from 0° to 360°. It is widely used in navigation, surveying, GIS mapping, astronomy, and RF antenna alignment to determine precise directional heading between two geographic points.

What is Azimuth Angle?

The azimuth angle is the numerical representation of direction expressed in degrees from 0° to 360°. The measurement always starts from north and increases clockwise, making it the standard directional reference in geolocation and RF engineering.

Standard Azimuth Reference

  • 0° → North
  • 90° → East
  • 180° → South
  • 270° → West

In azimuth measurement, the angle always increasesclockwise from true north.

Azimuth Angle Formula

The azimuth between two geographic coordinates can be calculated using the following trigonometric formula:

\[ \text{Azimuth} = \tan^{-1} \left( \frac{\sin(\Delta \lambda)\cos(\phi_2)} {\cos(\phi_1)\sin(\phi_2) - \sin(\phi_1)\cos(\phi_2)\cos(\Delta \lambda)} \right) \]
  • φ₁ = latitude of Point A
  • φ₂ = latitude of Point B
  • Δλ = difference in longitude

Our Azimuth Calculator automatically performs this calculation to deliver fast and accurate directional results.

Example: Azimuth Calculation

Suppose you want to calculate the azimuth from Delhi to Mumbai using their geographic coordinates:

Point A (Delhi): 28.6139° N, 77.2090° E

Point B (Mumbai): 19.0760° N, 72.8777° E

Result: Azimuth ≈ 212° (South-West direction)

Azimuth vs Bearing

Although azimuth and bearing both describe direction, they use different measurement systems. Azimuth is measured clockwise from north in a full 0°–360° circle, while bearing is typically expressed using quadrant notation.

Feature Azimuth Bearing
Angle Range 0° to 360° 0° to 90° per quadrant
Reference Clockwise from North North or South toward East/West
Common Use RF, GPS, GIS, astronomy Land surveying, navigation
Example 225° S 45° W

Most modern geolocation and RF planning tools prefer azimuth because it provides a continuous 360-degree directional reference.