| Olivenza to Clay Cross | 1,036.18 mi (1,667.58 km) |
| Olivenza to Clayton | 1,072.47 mi (1,725.97 km) |
| Olivenza to Clayton le Moors | 1,066.06 mi (1,715.66 km) |
| Olivenza to Cleckheaton | 1,069.73 mi (1,721.56 km) |
| Olivenza to Cleethorpes | 1,080.44 mi (1,738.81 km) |
| Olivenza to Clevedon | 904.74 mi (1,456.04 km) |
| Olivenza to Clifton | 1,022.12 mi (1,644.94 km) |
| Olivenza to Clifton | 1,093.35 mi (1,759.57 km) |
| Olivenza to Cliftonville | 969.39 mi (1,560.08 km) |
| Olivenza to Clitheroe | 1,072.43 mi (1,725.91 km) |
| Olivenza to Clydebank | 1,195.85 mi (1,924.53 km) |
| Olivenza to Coalville | 1,007.80 mi (1,621.89 km) |
| Olivenza to Coatbridge | 1,195.22 mi (1,923.51 km) |
| Olivenza to Cobham | 931.75 mi (1,499.51 km) |
| Olivenza to Cockermouth | 1,117.54 mi (1,798.50 km) |
