Distance calculator

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

KAPN · Alpena County Regional Airport → KBKT · Allen C Perkinson Blackstone Army Air Field

Distance
543.0 nm
1,005.7 km · 624.9 mi
Course (true)
150°
Reverse course
334°
Flight time
1:14

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