Distance Between Coordinates
Great-circle distance and bearing between two lat/lon points.
Point A
Point B
Great-circle distance
3935.7 km
2445.6 miles · 2125.1 nm
Initial bearing: 273.7° (W)
Distance in meters: 3935746 m
Distance in feet: 12912549 ft
Haversine formula on a 6,371 km mean Earth radius. Accurate to about 0.5 percent (Earth is slightly oblate). For aviation-grade accuracy use Vincenty's formula on the WGS-84 ellipsoid.
About
Enter two latitude/longitude pairs. Returns the great-circle distance in km, miles, and nautical miles, plus initial bearing and compass direction. Uses the haversine formula on a 6,371 km mean Earth radius.
How to use
- Enter point A latitude and longitude.
- Enter point B.
FAQ
How accurate is this?+
Haversine assumes a perfect sphere; Earth is slightly oblate. Error is about 0.5 percent (a few hundred meters on a 1000 km flight). For aviation, use Vincenty's formula on the WGS-84 ellipsoid.