| Allouez to Clacton-on-Sea | 3,880.35 mi (6,244.82 km) |
| Allouez to Clay Cross | 3,739.91 mi (6,018.80 km) |
| Allouez to Clayton | 3,705.23 mi (5,962.99 km) |
| Allouez to Clayton le Moors | 3,684.82 mi (5,930.15 km) |
| Allouez to Cleckheaton | 3,710.48 mi (5,971.44 km) |
| Allouez to Cleethorpes | 3,777.25 mi (6,078.90 km) |
| Allouez to Clevedon | 3,743.51 mi (6,024.61 km) |
| Allouez to Clifton | 3,757.11 mi (6,046.48 km) |
| Allouez to Clifton | 3,724.80 mi (5,994.49 km) |
| Allouez to Cliftonville | 3,904.24 mi (6,283.26 km) |
| Allouez to Clitheroe | 3,681.48 mi (5,924.78 km) |
| Allouez to Clydebank | 3,548.12 mi (5,710.15 km) |
| Allouez to Coalville | 3,756.06 mi (6,044.80 km) |
| Allouez to Coatbridge | 3,562.35 mi (5,733.05 km) |
| Allouez to Cobham | 3,839.02 mi (6,178.31 km) |
