| Harker Heights to Clacton-on-Sea | 4,910.51 mi (7,902.70 km) |
| Harker Heights to Clay Cross | 4,772.62 mi (7,680.79 km) |
| Harker Heights to Clayton | 4,740.19 mi (7,628.59 km) |
| Harker Heights to Clayton le Moors | 4,719.03 mi (7,594.54 km) |
| Harker Heights to Cleckheaton | 4,745.31 mi (7,636.84 km) |
| Harker Heights to Cleethorpes | 4,813.51 mi (7,746.59 km) |
| Harker Heights to Clevedon | 4,765.62 mi (7,669.52 km) |
| Harker Heights to Clifton | 4,788.95 mi (7,707.07 km) |
| Harker Heights to Clifton | 4,761.48 mi (7,662.87 km) |
| Harker Heights to Cliftonville | 4,932.95 mi (7,938.82 km) |
| Harker Heights to Clitheroe | 4,716.11 mi (7,589.85 km) |
| Harker Heights to Clydebank | 4,589.25 mi (7,385.69 km) |
| Harker Heights to Coalville | 4,786.81 mi (7,703.62 km) |
| Harker Heights to Coatbridge | 4,603.70 mi (7,408.93 km) |
| Harker Heights to Cobham | 4,864.54 mi (7,828.71 km) |
