| Viterbo to Rende | 301.35 mi (484.98 km) |
| Viterbo to Resana | 222.25 mi (357.67 km) |
| Viterbo to Rescaldina | 270.85 mi (435.90 km) |
| Viterbo to Rezzato | 231.64 mi (372.79 km) |
| Viterbo to Rho | 263.82 mi (424.58 km) |
| Viterbo to Ribera | 345.39 mi (555.85 km) |
| Viterbo to Riccione Marina | 112.67 mi (181.32 km) |
| Viterbo to Riesi | 369.99 mi (595.44 km) |
| Viterbo to Rieti | 38.40 mi (61.80 km) |
| Viterbo to Rignano Flaminio | 24.56 mi (39.53 km) |
| Viterbo to Rignano sull'Arno | 96.02 mi (154.52 km) |
| Viterbo to Rimini | 115.75 mi (186.28 km) |
| Viterbo to Rionero in Vulture | 211.11 mi (339.75 km) |
| Viterbo to Riposto | 362.68 mi (583.68 km) |
| Viterbo to Riva del Garda | 247.32 mi (398.03 km) |
