| Olsberg to Catania | 1,009.93 mi (1,625.32 km) |
| Olsberg to Catanzaro | 945.47 mi (1,521.59 km) |
| Olsberg to Cattolica | 546.90 mi (880.15 km) |
| Olsberg to Cava de' Tirreni | 793.28 mi (1,276.65 km) |
| Olsberg to Cavallino | 892.66 mi (1,436.60 km) |
| Olsberg to Cavarzere | 459.96 mi (740.23 km) |
| Olsberg to Cave | 691.42 mi (1,112.74 km) |
| Olsberg to Cavriago | 469.08 mi (754.92 km) |
| Olsberg to Cavriglia | 558.97 mi (899.57 km) |
| Olsberg to Cazzago San Martino | 404.74 mi (651.37 km) |
| Olsberg to Ceccano | 713.89 mi (1,148.89 km) |
| Olsberg to Cecina | 563.09 mi (906.21 km) |
| Olsberg to Cefalu | 958.70 mi (1,542.88 km) |
| Olsberg to Ceglie Messapico | 855.19 mi (1,376.30 km) |
| Olsberg to Celano | 683.28 mi (1,099.63 km) |
