Distance calculator

Great-circle distance. Enter an airport ICAO / IATA code or coordinates (for example 52.1657, 20.9671).

RJTK · JGSDF Kisarazu Airfield → RKSS · Seoul Gimpo International Airport

Distance
645.9 nm
1,196.2 km · 743.3 mi
Course (true)
285°
Reverse course
098°
Flight time
1:28

Straight great-circle distance, not a route. Course is true, not magnetic.