| Duffel to Castelli Calepio | 451.09 mi (725.96 km) |
| Duffel to Castelnovo ne' Monti | 535.16 mi (861.26 km) |
| Duffel to Castelnuovo Berardenga | 627.39 mi (1,009.69 km) |
| Duffel to Castelnuovo di Porto | 725.24 mi (1,167.16 km) |
| Duffel to Castelnuovo di Verona | 485.35 mi (781.09 km) |
| Duffel to Castelnuovo Rangone | 541.21 mi (871.00 km) |
| Duffel to Castelvetrano | 1,011.53 mi (1,627.91 km) |
| Duffel to Castelvetro di Modena | 544.60 mi (876.45 km) |
| Duffel to Castenaso | 557.56 mi (897.31 km) |
| Duffel to Castenedolo | 470.76 mi (757.61 km) |
| Duffel to Castiglion Fiorentino | 637.90 mi (1,026.60 km) |
| Duffel to Castiglione del Lago | 653.42 mi (1,051.58 km) |
| Duffel to Castiglione delle Stiviere | 480.15 mi (772.73 km) |
| Duffel to Castrolibero | 990.50 mi (1,594.06 km) |
| Duffel to Castrovillari | 961.02 mi (1,546.61 km) |
