About the Bearing Calculator Online Free Tool

The Bearing Calculator Online Free Tool estimates forward and reverse initial bearings between two latitude/longitude points.

How to Use the Bearing Calculator Online

1. Enter the start coordinate in decimal degrees.
2. Enter the destination coordinate in decimal degrees.
3. Run the calculator to review forward and reverse bearing values.

Choosing Options Correctly

Bearings are true bearings based on geographic coordinates. Local magnetic declination, grid convergence, route curvature, and map projection effects are not included.

Common Use Cases

• Find an initial heading between two GPS points.
• Cross-check navigation or GIS calculations.
• Compare forward and reverse direction values.

Quick FAQ

Is this magnetic bearing?
No. It reports true bearing from coordinate geometry unless you separately apply magnetic declination.

Does reverse bearing simply add 180 degrees?
Not always on a sphere. The calculator computes it from the opposite direction.

What coordinate format should I enter?
Use decimal degrees unless the tool specifically offers another format. Small coordinate errors can noticeably change short bearings.

How accurate is the result?
It is suitable for quick geodetic checks. Critical survey work should be verified against project control and survey software.