| Boulogne-sur-Mer to Campogalliano | 598.10 mi (962.54 km) |
| Boulogne-sur-Mer to Campolongo Maggiore | 608.42 mi (979.16 km) |
| Boulogne-sur-Mer to Camponogara | 606.75 mi (976.46 km) |
| Boulogne-sur-Mer to Camposampiero | 593.56 mi (955.25 km) |
| Boulogne-sur-Mer to Canegrate | 490.38 mi (789.20 km) |
| Boulogne-sur-Mer to Canelli | 517.74 mi (833.23 km) |
| Boulogne-sur-Mer to Canicatti | 1,101.91 mi (1,773.35 km) |
| Boulogne-sur-Mer to Canosa di Puglia | 952.56 mi (1,533.00 km) |
| Boulogne-sur-Mer to Cantu | 488.17 mi (785.64 km) |
| Boulogne-sur-Mer to Caorle | 627.55 mi (1,009.94 km) |
| Boulogne-sur-Mer to Capaci | 1,037.22 mi (1,669.24 km) |
| Boulogne-sur-Mer to Capannori | 632.93 mi (1,018.61 km) |
| Boulogne-sur-Mer to Capena | 787.40 mi (1,267.19 km) |
| Boulogne-sur-Mer to Capo d'Orlando | 1,080.03 mi (1,738.14 km) |
| Boulogne-sur-Mer to Capodrise | 902.60 mi (1,452.59 km) |
