| Olonne-sur-Mer to Cabestany | 353.09 mi (568.24 km) |
| Olonne-sur-Mer to Cabries | 409.50 mi (659.03 km) |
| Olonne-sur-Mer to Cachan | 246.46 mi (396.65 km) |
| Olonne-sur-Mer to Caen | 193.90 mi (312.05 km) |
| Olonne-sur-Mer to Cagnes-sur-Mer | 477.85 mi (769.03 km) |
| Olonne-sur-Mer to Cahors | 212.21 mi (341.53 km) |
| Olonne-sur-Mer to Calais | 346.70 mi (557.96 km) |
| Olonne-sur-Mer to Caluire-et-Cuire | 320.79 mi (516.26 km) |
| Olonne-sur-Mer to Cambrai | 340.65 mi (548.23 km) |
| Olonne-sur-Mer to Canet-en-Roussillon | 353.85 mi (569.46 km) |
| Olonne-sur-Mer to Cannes | 475.54 mi (765.31 km) |
| Olonne-sur-Mer to Canteleu | 239.61 mi (385.62 km) |
| Olonne-sur-Mer to Capbreton | 200.66 mi (322.93 km) |
| Olonne-sur-Mer to Carcassonne | 305.80 mi (492.13 km) |
| Olonne-sur-Mer to Carmaux | 256.91 mi (413.45 km) |
