| Oeiras to Cabestany | 698.34 mi (1,123.88 km) |
| Oeiras to Cabries | 831.72 mi (1,338.52 km) |
| Oeiras to Cachan | 906.71 mi (1,459.20 km) |
| Oeiras to Caen | 849.63 mi (1,367.35 km) |
| Oeiras to Cagnes-sur-Mer | 920.89 mi (1,482.03 km) |
| Oeiras to Cahors | 683.08 mi (1,099.30 km) |
| Oeiras to Calais | 1,006.47 mi (1,619.76 km) |
| Oeiras to Caluire-et-Cuire | 873.41 mi (1,405.62 km) |
| Oeiras to Cambrai | 1,004.21 mi (1,616.12 km) |
| Oeiras to Canet-en-Roussillon | 702.00 mi (1,129.76 km) |
| Oeiras to Cannes | 912.17 mi (1,468.00 km) |
| Oeiras to Canteleu | 902.42 mi (1,452.30 km) |
| Oeiras to Capbreton | 533.97 mi (859.34 km) |
| Oeiras to Carcassonne | 683.63 mi (1,100.19 km) |
| Oeiras to Carmaux | 700.09 mi (1,126.68 km) |
