Haversine Flight Layover Distance Calculator
Enter the latitude and longitude of your origin, layover, and destination points. This calculator uses the haversine formula to compute great-circle distances between each leg and totals your trip mileage — useful for estimating flight distance, fuel burn comparisons, or mileage rewards.
About this calculator
Calculate the great-circle (haversine) distance between two airports or coordinates and estimate total trip distance including a layover stop.
Frequently Asked Questions
What is the haversine formula?
The haversine formula calculates the great-circle distance between two points on a sphere given their latitude and longitude, accounting for the Earth's curvature — more accurate than a straight-line calculation for long distances.
Where do I find airport coordinates?
You can find latitude and longitude for any airport through flight tracking sites or by searching '[airport code] coordinates'.
Why is my layover route longer than the direct route?
Any route with an intermediate stop that isn't exactly on the great-circle path between origin and destination will add extra distance, shown as 'Extra Distance from Layover'.