| Viterbo to Potenza Picena | 100.76 mi (162.16 km) |
| Viterbo to Pozzallo | 419.22 mi (674.67 km) |
| Viterbo to Pozzuoli | 151.70 mi (244.14 km) |
| Viterbo to Prato | 113.07 mi (181.98 km) |
| Viterbo to Preganziol | 219.91 mi (353.91 km) |
| Viterbo to Priolo Gargallo | 397.91 mi (640.38 km) |
| Viterbo to Priverno | 86.03 mi (138.45 km) |
| Viterbo to Pulsano | 306.01 mi (492.48 km) |
| Viterbo to Putignano | 280.56 mi (451.52 km) |
| Viterbo to Qualiano | 148.04 mi (238.24 km) |
| Viterbo to Quarrata | 113.76 mi (183.07 km) |
| Viterbo to Quartu Sant'Elena | 267.36 mi (430.27 km) |
| Viterbo to Quartucciu | 266.92 mi (429.57 km) |
| Viterbo to Quattro Castella | 173.61 mi (279.40 km) |
| Viterbo to Quinto di Treviso | 223.29 mi (359.35 km) |
