| Viterbo to Castrovillari | 278.81 mi (448.71 km) |
| Viterbo to Catania | 374.77 mi (603.13 km) |
| Viterbo to Catanzaro | 338.47 mi (544.72 km) |
| Viterbo to Cattolica | 111.56 mi (179.54 km) |
| Viterbo to Cava de' Tirreni | 179.18 mi (288.36 km) |
| Viterbo to Cavallino | 347.74 mi (559.64 km) |
| Viterbo to Cavarzere | 187.83 mi (302.28 km) |
| Viterbo to Cave | 59.46 mi (95.69 km) |
| Viterbo to Cavriago | 176.15 mi (283.49 km) |
| Viterbo to Cavriglia | 82.11 mi (132.14 km) |
| Viterbo to Cazzago San Martino | 241.71 mi (388.99 km) |
| Viterbo to Ceccano | 86.30 mi (138.89 km) |
| Viterbo to Cecina | 101.55 mi (163.43 km) |
| Viterbo to Cefalu | 319.33 mi (513.90 km) |
| Viterbo to Ceglie Messapico | 304.58 mi (490.17 km) |
