| Port Huron to Clacton-on-Sea | 3,738.43 mi (6,016.42 km) |
| Port Huron to Clay Cross | 3,600.84 mi (5,794.99 km) |
| Port Huron to Clayton | 3,568.77 mi (5,743.37 km) |
| Port Huron to Clayton le Moors | 3,547.49 mi (5,709.13 km) |
| Port Huron to Cleckheaton | 3,573.86 mi (5,751.57 km) |
| Port Huron to Cleethorpes | 3,642.30 mi (5,861.71 km) |
| Port Huron to Clevedon | 3,593.46 mi (5,783.12 km) |
| Port Huron to Clifton | 3,617.06 mi (5,821.09 km) |
| Port Huron to Clifton | 3,590.39 mi (5,778.18 km) |
| Port Huron to Cliftonville | 3,760.78 mi (6,052.40 km) |
| Port Huron to Clitheroe | 3,544.65 mi (5,704.56 km) |
| Port Huron to Clydebank | 3,419.58 mi (5,503.28 km) |
| Port Huron to Coalville | 3,614.80 mi (5,817.47 km) |
| Port Huron to Coatbridge | 3,434.08 mi (5,526.62 km) |
| Port Huron to Cobham | 3,692.30 mi (5,942.19 km) |
