๐ Great-Circle Distance Calculator
Point A
Point B
Great-circle distance403.1 km250.4 mi
Enter the latitude and longitude of two points to calculate the great-circle distance between them using the haversine formula, which treats the Earth as a sphere. This gives the shortest straight-line distance over the Earthโs surface, in both kilometers and miles.
How to use
- Enter the latitude and longitude of point A.
- Enter the latitude and longitude of point B.
- The great-circle distance is calculated automatically in kilometers and miles.
FAQ
What formula does this use?
It uses the haversine formula, a standard method for computing great-circle distance between two points given their latitude and longitude, assuming Earth is a sphere with a radius of 6371 km.
Is this the same as driving distance?
No, this is the shortest straight-line distance over the Earthโs surface, not an actual road or flight route distance.
What format should I use for coordinates?
Use decimal degrees. Southern latitudes and western longitudes should be entered as negative numbers.