| Gravelines to Cassino | 859.57 mi (1,383.35 km) |
| Gravelines to Castagneto Carducci | 670.51 mi (1,079.09 km) |
| Gravelines to Castano Primo | 483.67 mi (778.39 km) |
| Gravelines to Castel Bolognese | 643.21 mi (1,035.15 km) |
| Gravelines to Castel Gandolfo | 810.31 mi (1,304.06 km) |
| Gravelines to Castel Goffredo | 549.42 mi (884.21 km) |
| Gravelines to Castel Maggiore | 616.17 mi (991.64 km) |
| Gravelines to Castel Mella | 528.53 mi (850.59 km) |
| Gravelines to Castel San Giorgio | 926.18 mi (1,490.54 km) |
| Gravelines to Castel San Giovanni | 530.73 mi (854.13 km) |
| Gravelines to Castel San Pietro Terme | 631.87 mi (1,016.89 km) |
| Gravelines to Castel Volturno | 887.31 mi (1,427.99 km) |
| Gravelines to Castelbuono | 1,074.93 mi (1,729.94 km) |
| Gravelines to Casteldaccia | 1,053.04 mi (1,694.71 km) |
| Gravelines to Castelfidardo | 744.86 mi (1,198.74 km) |
