| Castel Gandolfo to Paola | 241.94 mi (389.37 km) |
| Castel Gandolfo to Parabiago | 321.85 mi (517.97 km) |
| Castel Gandolfo to Parabita | 309.27 mi (497.73 km) |
| Castel Gandolfo to Parma | 241.24 mi (388.24 km) |
| Castel Gandolfo to Partanna | 277.90 mi (447.24 km) |
| Castel Gandolfo to Partinico | 256.62 mi (412.98 km) |
| Castel Gandolfo to Pasian di Prato | 298.56 mi (480.49 km) |
| Castel Gandolfo to Paterno | 312.57 mi (503.03 km) |
| Castel Gandolfo to Patti | 277.74 mi (446.98 km) |
| Castel Gandolfo to Paullo | 301.24 mi (484.80 km) |
| Castel Gandolfo to Pavia | 295.21 mi (475.10 km) |
| Castel Gandolfo to Pavullo nel Frignano | 200.87 mi (323.28 km) |
| Castel Gandolfo to Pedara | 312.89 mi (503.55 km) |
| Castel Gandolfo to Pellezzano | 130.29 mi (209.68 km) |
| Castel Gandolfo to Penne | 81.02 mi (130.39 km) |
