Distance between Koscierzyna and Postavy is 580.1 km.
This distance is equal to 360.46 miles, and 313.02 nautical miles.
The distance line on map shows distance from Koscierzyna to Postavy between two cities.
If you travel with an airplane (which has average speed of 560 miles) between Koscierzyna to Postavy,
It takes 0.64 hours to arrive.