| Viterbo to Borgosatollo | 230.69 mi (371.27 km) |
| Viterbo to Borgosesia | 296.95 mi (477.89 km) |
| Viterbo to Boscoreale | 167.74 mi (269.95 km) |
| Viterbo to Boscotrecase | 166.32 mi (267.66 km) |
| Viterbo to Botticino Sera | 234.43 mi (377.28 km) |
| Viterbo to Bovalino Marina | 364.36 mi (586.38 km) |
| Viterbo to Boves | 264.16 mi (425.13 km) |
| Viterbo to Boville Ernica | 87.80 mi (141.30 km) |
| Viterbo to Bovisio Masciago | 265.23 mi (426.85 km) |
| Viterbo to Bovolone | 201.52 mi (324.32 km) |
| Viterbo to Bra | 264.93 mi (426.36 km) |
| Viterbo to Bracciano | 22.38 mi (36.02 km) |
| Viterbo to Brandizzo | 285.55 mi (459.54 km) |
| Viterbo to Breganze | 228.29 mi (367.39 km) |
| Viterbo to Brembate | 253.79 mi (408.44 km) |
