| Hackettstown to Clacton-on-Sea | 3,533.51 mi (5,686.64 km) |
| Hackettstown to Clay Cross | 3,401.64 mi (5,474.40 km) |
| Hackettstown to Clayton | 3,373.74 mi (5,429.50 km) |
| Hackettstown to Clayton le Moors | 3,351.46 mi (5,393.66 km) |
| Hackettstown to Cleckheaton | 3,378.54 mi (5,437.23 km) |
| Hackettstown to Cleethorpes | 3,448.53 mi (5,549.88 km) |
| Hackettstown to Clevedon | 3,378.47 mi (5,437.12 km) |
| Hackettstown to Clifton | 3,416.26 mi (5,497.93 km) |
| Hackettstown to Clifton | 3,398.06 mi (5,468.64 km) |
| Hackettstown to Cliftonville | 3,553.41 mi (5,718.66 km) |
| Hackettstown to Clitheroe | 3,349.38 mi (5,390.30 km) |
| Hackettstown to Clydebank | 3,237.97 mi (5,211.00 km) |
| Hackettstown to Coalville | 3,412.28 mi (5,491.53 km) |
| Hackettstown to Coatbridge | 3,252.67 mi (5,234.67 km) |
| Hackettstown to Cobham | 3,481.00 mi (5,602.13 km) |
