| Olbia to Castrovillari | 360.71 mi (580.50 km) |
| Olbia to Catania | 381.04 mi (613.23 km) |
| Olbia to Catanzaro | 401.12 mi (645.54 km) |
| Olbia to Cattolica | 267.51 mi (430.52 km) |
| Olbia to Cava de' Tirreni | 272.31 mi (438.25 km) |
| Olbia to Cavallino | 457.98 mi (737.05 km) |
| Olbia to Cavarzere | 319.38 mi (513.99 km) |
| Olbia to Cave | 188.56 mi (303.46 km) |
| Olbia to Cavriago | 266.59 mi (429.03 km) |
| Olbia to Cavriglia | 206.31 mi (332.03 km) |
| Olbia to Cazzago San Martino | 323.40 mi (520.47 km) |
| Olbia to Ceccano | 204.14 mi (328.53 km) |
| Olbia to Cecina | 173.81 mi (279.73 km) |
| Olbia to Cefalu | 312.52 mi (502.95 km) |
| Olbia to Ceglie Messapico | 418.79 mi (673.98 km) |
