| Douai to Cassino | 800.04 mi (1,287.54 km) |
| Douai to Castagneto Carducci | 611.25 mi (983.71 km) |
| Douai to Castano Primo | 424.24 mi (682.74 km) |
| Douai to Castel Bolognese | 583.78 mi (939.50 km) |
| Douai to Castel Gandolfo | 750.84 mi (1,208.36 km) |
| Douai to Castel Goffredo | 489.96 mi (788.52 km) |
| Douai to Castel Maggiore | 556.71 mi (895.94 km) |
| Douai to Castel Mella | 469.06 mi (754.88 km) |
| Douai to Castel San Giorgio | 866.65 mi (1,394.73 km) |
| Douai to Castel San Giovanni | 471.26 mi (758.42 km) |
| Douai to Castel San Pietro Terme | 572.41 mi (921.20 km) |
| Douai to Castel Volturno | 827.78 mi (1,332.19 km) |
| Douai to Castelbuono | 1,015.90 mi (1,634.93 km) |
| Douai to Casteldaccia | 994.20 mi (1,600.01 km) |
| Douai to Castelfidardo | 685.61 mi (1,103.38 km) |
