| Castel Gandolfo to Pergine Valsugana | 306.69 mi (493.58 km) |
| Castel Gandolfo to Perugia | 95.28 mi (153.34 km) |
| Castel Gandolfo to Pesaro | 150.44 mi (242.12 km) |
| Castel Gandolfo to Pescantina | 273.15 mi (439.59 km) |
| Castel Gandolfo to Pescara | 94.18 mi (151.57 km) |
| Castel Gandolfo to Peschiera del Garda | 273.31 mi (439.86 km) |
| Castel Gandolfo to Pescia | 179.02 mi (288.10 km) |
| Castel Gandolfo to Petilia Policastro | 283.20 mi (455.76 km) |
| Castel Gandolfo to Piacenza | 272.07 mi (437.85 km) |
| Castel Gandolfo to Pianella | 84.72 mi (136.34 km) |
| Castel Gandolfo to Pianezza | 345.66 mi (556.29 km) |
| Castel Gandolfo to Pianiga | 258.45 mi (415.93 km) |
| Castel Gandolfo to Piano di Sorrento | 119.52 mi (192.35 km) |
| Castel Gandolfo to Pianoro | 193.93 mi (312.10 km) |
| Castel Gandolfo to Piazza Armerina | 315.01 mi (506.96 km) |
