Distance
Calculate distances between points in 2D, 3D, and on Earth
How to use Distance
- 1Enter the coordinates or two place names, or pick two points on the map if available.
- 2Choose the model: straight-line (haversine) or route distance.
- 3Read the distance in your preferred units and the approximate travel time.
Straight-line versus travel distance
Haversine: d = 2R arcsin(√(sin²(Δφ/2) + cosφ₁cosφ₂ sin²(Δλ/2)))The haversine formula gives the great-circle distance between two points on a sphere using their latitudes and longitudes.
Real travel distance is longer because roads and paths bend; use routing for driving or walking estimates.
Frequently asked questions
Why does the map distance differ from my GPS?
GPS routes follow roads; the straight-line value is the shortest possible across the surface.
What units can I use?
Kilometres, miles, or nautical miles depending on the selector.
Does elevation matter?
Haversine ignores hills; for small areas the error is negligible but mountains add real distance.