Distance, Bearing and Destination Calculator

Calculate great-circle distance, initial/final bearing, midpoint and a destination point from WGS84 coordinates.

richie woods

A spherical-Earth navigation aid for route estimates and waypoint generation.

Local calculation: values are processed in your browser and are not transmitted. Optional profiles are stored only in this browser.
Active profile: Manual values
decimal deg
decimal deg
decimal deg
decimal deg
deg true

Planning output only. Verify assumptions and results against authoritative data, manufacturer information, approved procedures, test evidence and competent engineering or regulatory review before use.

Calculation basis

Distance uses the haversine formula with a mean Earth radius of 6,371,008.8 metres. Bearings, midpoint and destination are calculated on the same spherical-Earth model.

Limitations and verification

  • Outputs are geometric estimates and do not account for terrain, airspace, magnetic variation, wind or route constraints.
  • Long routes and precision survey work may require an ellipsoidal geodesic implementation.
  • Bearings are true, not magnetic.

Version and review status

Formula set: v1.2
Staging review date: 17 August 2026
Status: Staging beta pending user acceptance and cross-browser checks.