| Boulogne-sur-Mer to Costessey | 134.70 mi (216.78 km) |
| Boulogne-sur-Mer to Cottingham | 227.87 mi (366.73 km) |
| Boulogne-sur-Mer to Coulsdon | 86.57 mi (139.32 km) |
| Boulogne-sur-Mer to Coventry | 177.50 mi (285.66 km) |
| Boulogne-sur-Mer to Cowdenbeath | 424.19 mi (682.67 km) |
| Boulogne-sur-Mer to Cowes | 127.46 mi (205.12 km) |
| Boulogne-sur-Mer to Cowley | 106.42 mi (171.26 km) |
| Boulogne-sur-Mer to Cowley | 140.79 mi (226.58 km) |
| Boulogne-sur-Mer to Cramlington | 329.08 mi (529.60 km) |
| Boulogne-sur-Mer to Cranleigh | 95.44 mi (153.60 km) |
| Boulogne-sur-Mer to Crawley | 82.82 mi (133.29 km) |
| Boulogne-sur-Mer to Crayford | 79.77 mi (128.38 km) |
| Boulogne-sur-Mer to Crewe | 238.13 mi (383.23 km) |
| Boulogne-sur-Mer to Crigglestone | 241.40 mi (388.50 km) |
| Boulogne-sur-Mer to Cromer | 152.91 mi (246.08 km) |
