Calculate route from Koumi-eki (Nagano, Japan) to Osaka (Ōsaka, Japan).
The flight distance (as the crow flies) between Koumi-eki and Osaka is 311.3 km.
Roadmap (route) to go from Koumi-eki to Osaka detailed above, you can also see the course layout on the map.
While doing trip Koumi-eki - Osaka by car, the calculated route ends at a distance , or more straight.