| Olsberg to Civita Castellana | 652.28 mi (1,049.74 km) |
| Olsberg to Civitanova Marche | 607.74 mi (978.06 km) |
| Olsberg to Civitavecchia | 657.95 mi (1,058.88 km) |
| Olsberg to Civitella in Val di Chiana | 568.48 mi (914.88 km) |
| Olsberg to Clusone | 383.59 mi (617.32 km) |
| Olsberg to Coccaglio | 405.62 mi (652.79 km) |
| Olsberg to Codigoro | 480.32 mi (772.99 km) |
| Olsberg to Codogno | 431.35 mi (694.19 km) |
| Olsberg to Codroipo | 424.86 mi (683.75 km) |
| Olsberg to Cogoleto | 480.99 mi (774.08 km) |
| Olsberg to Colle di Val d'Elsa | 563.01 mi (906.08 km) |
| Olsberg to Colle Salvetti | 543.50 mi (874.68 km) |
| Olsberg to Collecchio | 462.95 mi (745.05 km) |
| Olsberg to Colleferro | 698.16 mi (1,123.58 km) |
| Olsberg to Collegno | 435.40 mi (700.71 km) |
