| Allendale to Cosham | 3,818.02 mi (6,144.51 km) |
| Allendale to Costessey | 3,846.20 mi (6,189.86 km) |
| Allendale to Cottingham | 3,750.99 mi (6,036.63 km) |
| Allendale to Coulsdon | 3,838.32 mi (6,177.18 km) |
| Allendale to Coventry | 3,752.04 mi (6,038.32 km) |
| Allendale to Cowdenbeath | 3,578.54 mi (5,759.10 km) |
| Allendale to Cowes | 3,811.59 mi (6,134.17 km) |
| Allendale to Cowley | 3,818.62 mi (6,145.48 km) |
| Allendale to Cowley | 3,784.15 mi (6,090.00 km) |
| Allendale to Cramlington | 3,670.07 mi (5,906.41 km) |
| Allendale to Cranleigh | 3,831.25 mi (6,165.80 km) |
| Allendale to Crawley | 3,843.30 mi (6,185.19 km) |
| Allendale to Crayford | 3,846.38 mi (6,190.16 km) |
| Allendale to Crewe | 3,696.28 mi (5,948.58 km) |
| Allendale to Crigglestone | 3,714.31 mi (5,977.60 km) |
