| Portimao to Clay Cross | 1,159.10 mi (1,865.39 km) |
| Portimao to Clayton | 1,194.04 mi (1,921.62 km) |
| Portimao to Clayton le Moors | 1,186.54 mi (1,909.56 km) |
| Portimao to Cleckheaton | 1,191.52 mi (1,917.57 km) |
| Portimao to Cleethorpes | 1,205.26 mi (1,939.68 km) |
| Portimao to Clevedon | 1,026.54 mi (1,652.06 km) |
| Portimao to Clifton | 1,145.72 mi (1,843.86 km) |
| Portimao to Clifton | 1,216.00 mi (1,956.97 km) |
| Portimao to Cliftonville | 1,098.40 mi (1,767.71 km) |
| Portimao to Clitheroe | 1,192.81 mi (1,919.64 km) |
| Portimao to Clydebank | 1,310.65 mi (2,109.28 km) |
| Portimao to Coalville | 1,131.25 mi (1,820.57 km) |
| Portimao to Coatbridge | 1,310.80 mi (2,109.53 km) |
| Portimao to Cobham | 1,058.38 mi (1,703.30 km) |
| Portimao to Cockermouth | 1,235.30 mi (1,988.03 km) |
