Travel Distance Calculator
Calculate the great-circle distance between two coordinates: straight-line km and miles plus a flight-time estimate.
About this tool
Enter the latitude and longitude of two places and get the great-circle distance in kilometers and miles, plus a rough flight-time estimate.
Perfect for comparing flight lengths, estimating road-trip scope, or satisfying the "how far apart are we really?" question on a map — no overhead of routing engines, just exact geometry.
FAQ
What is the great-circle distance?
The shortest path along Earth’s surface between two points, as the crow flies. It is the standard for flight planning.
How do I find coordinates?
Search any city in your map app, tap the location, and read the lat/lon numbers (e.g. 31.23, 121.47 for Shanghai).
Is flight time accurate?
It uses a typical cruise speed of 850 km/h plus nothing else — real flights add taxi, climb, descent and headwinds.