Distance between Polhov Gradec and Tarquinia is 470.16 km.
This distance is equal to 292.14 miles, and 253.7 nautical miles.
The distance line on map shows distance from Polhov Gradec to Tarquinia between two cities.
If you travel with an airplane (which has average speed of 560 miles) between Polhov Gradec to Tarquinia,
It takes 0.52 hours to arrive.