| Hackettstown to Castelletto sopra Ticino | 4,014.26 mi (6,460.33 km) |
| Hackettstown to Castelli Calepio | 4,070.93 mi (6,551.53 km) |
| Hackettstown to Castelnovo ne' Monti | 4,132.34 mi (6,650.35 km) |
| Hackettstown to Castelnuovo Berardenga | 4,217.37 mi (6,787.20 km) |
| Hackettstown to Castelnuovo di Porto | 4,303.80 mi (6,926.29 km) |
| Hackettstown to Castelnuovo di Verona | 4,114.36 mi (6,621.42 km) |
| Hackettstown to Castelnuovo Rangone | 4,151.28 mi (6,680.83 km) |
| Hackettstown to Castelvetrano | 4,481.79 mi (7,212.75 km) |
| Hackettstown to Castelvetro di Modena | 4,153.69 mi (6,684.73 km) |
| Hackettstown to Castenaso | 4,175.65 mi (6,720.06 km) |
| Hackettstown to Castenedolo | 4,093.17 mi (6,587.32 km) |
| Hackettstown to Castiglion Fiorentino | 4,235.44 mi (6,816.28 km) |
| Hackettstown to Castiglione del Lago | 4,248.26 mi (6,836.91 km) |
| Hackettstown to Castiglione delle Stiviere | 4,104.15 mi (6,604.99 km) |
| Hackettstown to Castrolibero | 4,572.06 mi (7,358.02 km) |
