| Hackettstown to Carmignano | 4,179.98 mi (6,727.02 km) |
| Hackettstown to Carovigno | 4,582.29 mi (7,374.49 km) |
| Hackettstown to Carpenedolo | 4,102.43 mi (6,602.22 km) |
| Hackettstown to Carpi | 4,141.21 mi (6,664.64 km) |
| Hackettstown to Carrara | 4,131.37 mi (6,648.80 km) |
| Hackettstown to Carugate | 4,049.53 mi (6,517.10 km) |
| Hackettstown to Casal di Principe | 4,416.28 mi (7,107.32 km) |
| Hackettstown to Casale Monferrato | 4,025.56 mi (6,478.51 km) |
| Hackettstown to Casale sul Sile | 4,174.83 mi (6,718.75 km) |
| Hackettstown to Casalecchio di Reno | 4,168.54 mi (6,708.62 km) |
| Hackettstown to Casalgrande | 4,141.57 mi (6,665.22 km) |
| Hackettstown to Casalmaggiore | 4,114.36 mi (6,621.43 km) |
| Hackettstown to Casalnuovo di Napoli | 4,429.53 mi (7,128.64 km) |
| Hackettstown to Casalpusterlengo | 4,075.28 mi (6,558.53 km) |
| Hackettstown to Casaluce | 4,419.83 mi (7,113.03 km) |
