| Douai to Castelfiorentino | 596.86 mi (960.56 km) |
| Douai to Castelfranco di Sopra | 613.20 mi (986.85 km) |
| Douai to Castelfranco di Sotto | 584.95 mi (941.38 km) |
| Douai to Castelfranco Emilia | 545.09 mi (877.24 km) |
| Douai to Castelfranco Veneto | 521.97 mi (840.03 km) |
| Douai to Castellabate | 902.67 mi (1,452.70 km) |
| Douai to Castellammare del Golfo | 979.50 mi (1,576.36 km) |
| Douai to Castellammare di Stabia | 864.86 mi (1,391.85 km) |
| Douai to Castellamonte | 405.92 mi (653.27 km) |
| Douai to Castellana Grotte | 942.06 mi (1,516.09 km) |
| Douai to Castellaneta | 947.20 mi (1,524.37 km) |
| Douai to Castellanza | 424.40 mi (683.00 km) |
| Douai to Castellarano | 538.23 mi (866.20 km) |
| Douai to Castelleone | 467.60 mi (752.53 km) |
| Douai to Castelletto sopra Ticino | 411.14 mi (661.67 km) |
