Online Location Tracking

Calculate Distance and Bearing between Latitude/Longitude points

All these formulæ are for calculations on the basis of a spherical earth (ignoring ellipsoidal effects) – which is accurate enough for most purposes… [In fact, the earth is very slightly ellipsoidal; using a spherical model gives errors typically up to 0.3%].

Great-circle distance between two points

Enter the co-ordinates into the text boxes to try out the calculations. A variety of formats are accepted, principally:

Point 1: ,
Point 2: ,
Distance: km (to 4 SF*)
Initial bearing:
Final bearing:

And you can See it on a Map...