| Olney to Cabestany | 4,021.81 mi (6,472.48 km) |
| Olney to Cabries | 4,108.63 mi (6,612.20 km) |
| Olney to Cachan | 3,822.69 mi (6,152.03 km) |
| Olney to Caen | 3,698.76 mi (5,952.57 km) |
| Olney to Cagnes-sur-Mer | 4,180.39 mi (6,727.69 km) |
| Olney to Cahors | 3,901.86 mi (6,279.43 km) |
| Olney to Calais | 3,749.09 mi (6,033.58 km) |
| Olney to Caluire-et-Cuire | 4,013.72 mi (6,459.46 km) |
| Olney to Cambrai | 3,824.71 mi (6,155.27 km) |
| Olney to Canet-en-Roussillon | 4,023.99 mi (6,475.99 km) |
| Olney to Cannes | 4,177.97 mi (6,723.79 km) |
| Olney to Canteleu | 3,751.50 mi (6,037.46 km) |
| Olney to Capbreton | 3,793.76 mi (6,105.47 km) |
| Olney to Carcassonne | 3,978.92 mi (6,403.46 km) |
| Olney to Carmaux | 3,945.59 mi (6,349.82 km) |
