| Viterbo to Pontedera | 113.61 mi (182.83 km) |
| Viterbo to Pontinia | 84.91 mi (136.64 km) |
| Viterbo to Porcari | 123.67 mi (199.02 km) |
| Viterbo to Porcia | 246.46 mi (396.64 km) |
| Viterbo to Pordenone | 245.49 mi (395.08 km) |
| Viterbo to Portici | 159.85 mi (257.25 km) |
| Viterbo to Porto Empedocle | 361.99 mi (582.56 km) |
| Viterbo to Porto Recanati | 105.53 mi (169.84 km) |
| Viterbo to Porto Sant'Elpidio | 101.91 mi (164.00 km) |
| Viterbo to Porto Tolle | 175.22 mi (282.00 km) |
| Viterbo to Porto Torres | 220.23 mi (354.42 km) |
| Viterbo to Portoferraio | 94.95 mi (152.81 km) |
| Viterbo to Portogruaro | 235.27 mi (378.64 km) |
| Viterbo to Portomaggiore | 158.36 mi (254.86 km) |
| Viterbo to Potenza | 227.48 mi (366.09 km) |
