Coordinate distance calculator
Measure the straight-line distance between GPS coordinates in km and miles.
How to use
- Enter at least two coordinates, one per line — decimal or DMS, mixed is fine.
- Each consecutive pair shows its distance in km and miles; three or more points also show the total (Σ).
- Copy the result for your report or planning notes.
Frequently asked questions
Is this driving distance?
No — it is the straight-line (great-circle) distance over the Earth's surface. Roads are always longer; for driving routes use a navigation app.
How accurate is the haversine formula?
Within about 0.5% — it models Earth as a sphere with its mean radius (6371 km). For most practical purposes that error is far smaller than route variation.
Can I measure a multi-stop route?
Yes. Enter the points in order, one per line; each leg is measured and the Σ line totals the whole sequence.
About this tool
How far is it, as the crow flies? This calculator measures the great-circle distance between coordinates using the haversine formula on the Earth's mean radius — the standard method for point-to-point distance that accounts for the planet's curvature. Enter two or more coordinates (decimal or DMS, one per line) and get the distance of each leg in kilometers and miles, plus the total for multi-point routes. Useful for estimating delivery radii, comparing site distances, checking a route's rough length or settling a which-city-is-closer debate. Note this is straight-line distance, not driving distance.