| Hackettstown to Carmona | 3,615.36 mi (5,818.37 km) |
| Hackettstown to Cartagena | 3,837.26 mi (6,175.48 km) |
| Hackettstown to Cartama | 3,688.35 mi (5,935.82 km) |
| Hackettstown to Cartaya | 3,546.51 mi (5,707.56 km) |
| Hackettstown to Caspe | 3,767.21 mi (6,062.74 km) |
| Hackettstown to Cassa de la Selva | 3,881.05 mi (6,245.95 km) |
| Hackettstown to Castalla | 3,819.90 mi (6,147.54 km) |
| Hackettstown to Castellbisbal | 3,853.06 mi (6,200.91 km) |
| Hackettstown to Castelldefels | 3,859.00 mi (6,210.46 km) |
| Hackettstown to Castello de Ampurias | 3,878.59 mi (6,241.99 km) |
| Hackettstown to Castellon de la Plana | 3,806.06 mi (6,125.26 km) |
| Hackettstown to Castilleja de la Cuesta | 3,597.52 mi (5,789.65 km) |
| Hackettstown to Catarroja | 3,806.85 mi (6,126.53 km) |
| Hackettstown to Catral | 3,827.58 mi (6,159.90 km) |
| Hackettstown to Caudete | 3,801.28 mi (6,117.57 km) |
