Calculate route from Dadri (Uttar Pradesh, India) to Patna (Bihar, India).
The flight distance (as the crow flies) between Dadri and Patna is 819.7 km.
Roadmap (route) to go from Dadri to Patna detailed above, you can also see the course layout on the map.
While doing trip Dadri - Patna by car, the calculated route ends at a distance , or more straight.