Finds the kilometres between two geo-points, using great-circle math.
Syntax
KMBETWEEN(startPoint, endPoint)
Example
KMBETWEEN('-8.45234 27.7623423', {{myGpsField}})
Notes
Geo-points are strings in 'lat lon' format, Location field answers are also geo-points.
Related
MIBETWEEN, INPOLYGON
