| Opole to Cabestany | 896.90 mi (1,443.42 km) |
| Opole to Cabries | 771.78 mi (1,242.06 km) |
| Opole to Cachan | 707.33 mi (1,138.34 km) |
| Opole to Caen | 818.50 mi (1,317.26 km) |
| Opole to Cagnes-sur-Mer | 699.20 mi (1,125.25 km) |
| Opole to Cahors | 878.15 mi (1,413.25 km) |
| Opole to Calais | 700.83 mi (1,127.88 km) |
| Opole to Caluire-et-Cuire | 688.56 mi (1,108.14 km) |
| Opole to Cambrai | 646.84 mi (1,040.98 km) |
| Opole to Canet-en-Roussillon | 893.33 mi (1,437.68 km) |
| Opole to Cannes | 709.56 mi (1,141.92 km) |
| Opole to Canteleu | 752.55 mi (1,211.11 km) |
| Opole to Capbreton | 1,026.93 mi (1,652.68 km) |
| Opole to Carcassonne | 894.83 mi (1,440.10 km) |
| Opole to Carmaux | 865.80 mi (1,393.37 km) |
