| Viterbo to Penne | 92.45 mi (148.79 km) |
| Viterbo to Pergine Valsugana | 255.71 mi (411.53 km) |
| Viterbo to Perugia | 50.05 mi (80.55 km) |
| Viterbo to Pesaro | 111.00 mi (178.64 km) |
| Viterbo to Pescantina | 220.51 mi (354.87 km) |
| Viterbo to Pescara | 107.63 mi (173.21 km) |
| Viterbo to Peschiera del Garda | 220.22 mi (354.41 km) |
| Viterbo to Pescia | 124.82 mi (200.88 km) |
| Viterbo to Petilia Policastro | 334.56 mi (538.43 km) |
| Viterbo to Piacenza | 217.83 mi (350.57 km) |
| Viterbo to Pianella | 99.27 mi (159.76 km) |
| Viterbo to Pianezza | 293.63 mi (472.55 km) |
| Viterbo to Pianiga | 210.08 mi (338.09 km) |
| Viterbo to Piano di Sorrento | 171.61 mi (276.18 km) |
| Viterbo to Pianoro | 141.15 mi (227.17 km) |
