| Grande-Synthe to Castelli Calepio | 509.41 mi (819.82 km) |
| Grande-Synthe to Castelnovo ne' Monti | 589.51 mi (948.72 km) |
| Grande-Synthe to Castelnuovo Berardenga | 682.53 mi (1,098.43 km) |
| Grande-Synthe to Castelnuovo di Porto | 780.19 mi (1,255.59 km) |
| Grande-Synthe to Castelnuovo di Verona | 547.49 mi (881.10 km) |
| Grande-Synthe to Castelnuovo Rangone | 599.22 mi (964.34 km) |
| Grande-Synthe to Castelvetrano | 1,054.48 mi (1,697.02 km) |
| Grande-Synthe to Castelvetro di Modena | 602.43 mi (969.51 km) |
| Grande-Synthe to Castenaso | 618.18 mi (994.87 km) |
| Grande-Synthe to Castenedolo | 530.46 mi (853.69 km) |
| Grande-Synthe to Castiglion Fiorentino | 695.10 mi (1,118.65 km) |
| Grande-Synthe to Castiglione del Lago | 710.34 mi (1,143.19 km) |
| Grande-Synthe to Castiglione delle Stiviere | 540.60 mi (870.01 km) |
| Grande-Synthe to Castrolibero | 1,050.69 mi (1,690.92 km) |
| Grande-Synthe to Castrovillari | 1,022.64 mi (1,645.78 km) |
