| Douai to Castelli Calepio | 454.15 mi (730.88 km) |
| Douai to Castelnovo ne' Monti | 533.81 mi (859.09 km) |
| Douai to Castelnuovo Berardenga | 626.83 mi (1,008.78 km) |
| Douai to Castelnuovo di Porto | 724.44 mi (1,165.87 km) |
| Douai to Castelnuovo di Verona | 492.65 mi (792.85 km) |
| Douai to Castelnuovo Rangone | 543.80 mi (875.17 km) |
| Douai to Castelvetrano | 998.74 mi (1,607.31 km) |
| Douai to Castelvetro di Modena | 546.99 mi (880.30 km) |
| Douai to Castenaso | 563.04 mi (906.13 km) |
| Douai to Castenedolo | 475.32 mi (764.95 km) |
| Douai to Castiglion Fiorentino | 639.54 mi (1,029.24 km) |
| Douai to Castiglione del Lago | 654.75 mi (1,053.72 km) |
| Douai to Castiglione delle Stiviere | 485.54 mi (781.40 km) |
| Douai to Castrolibero | 995.25 mi (1,601.70 km) |
| Douai to Castrovillari | 967.36 mi (1,556.81 km) |
