| Hackettstown to Cassina de' Pecchi | 4,052.05 mi (6,521.14 km) |
| Hackettstown to Cassino | 4,385.20 mi (7,057.30 km) |
| Hackettstown to Castagneto Carducci | 4,184.32 mi (6,734.01 km) |
| Hackettstown to Castano Primo | 4,025.34 mi (6,478.15 km) |
| Hackettstown to Castel Bolognese | 4,196.40 mi (6,753.45 km) |
| Hackettstown to Castel Gandolfo | 4,324.41 mi (6,959.47 km) |
| Hackettstown to Castel Goffredo | 4,106.49 mi (6,608.75 km) |
| Hackettstown to Castel Maggiore | 4,169.26 mi (6,709.77 km) |
| Hackettstown to Castel Mella | 4,085.95 mi (6,575.70 km) |
| Hackettstown to Castel San Giorgio | 4,449.89 mi (7,161.41 km) |
| Hackettstown to Castel San Giovanni | 4,070.21 mi (6,550.37 km) |
| Hackettstown to Castel San Pietro Terme | 4,184.25 mi (6,733.89 km) |
| Hackettstown to Castel Volturno | 4,405.53 mi (7,090.02 km) |
| Hackettstown to Castelbuono | 4,531.63 mi (7,292.95 km) |
| Hackettstown to Casteldaccia | 4,501.48 mi (7,244.44 km) |
