| Castel Gandolfo to Pontinia | 30.96 mi (49.83 km) |
| Castel Gandolfo to Porcari | 177.74 mi (286.04 km) |
| Castel Gandolfo to Porcia | 291.57 mi (469.23 km) |
| Castel Gandolfo to Pordenone | 290.41 mi (467.36 km) |
| Castel Gandolfo to Portici | 108.61 mi (174.79 km) |
| Castel Gandolfo to Porto Empedocle | 311.15 mi (500.75 km) |
| Castel Gandolfo to Porto Recanati | 127.33 mi (204.91 km) |
| Castel Gandolfo to Porto Sant'Elpidio | 118.97 mi (191.47 km) |
| Castel Gandolfo to Porto Tolle | 221.95 mi (357.20 km) |
| Castel Gandolfo to Porto Torres | 229.41 mi (369.21 km) |
| Castel Gandolfo to Portoferraio | 140.40 mi (225.94 km) |
| Castel Gandolfo to Portogruaro | 279.03 mi (449.06 km) |
| Castel Gandolfo to Portomaggiore | 208.50 mi (335.54 km) |
| Castel Gandolfo to Potenza | 180.85 mi (291.05 km) |
| Castel Gandolfo to Potenza Picena | 122.21 mi (196.68 km) |
