| Allendale to Cromer | 3,840.68 mi (6,180.97 km) |
| Allendale to Crosby | 3,662.71 mi (5,894.56 km) |
| Allendale to Crowborough | 3,858.20 mi (6,209.17 km) |
| Allendale to Croxley Green | 3,816.21 mi (6,141.59 km) |
| Allendale to Croydon | 3,837.75 mi (6,176.27 km) |
| Allendale to Cudworth | 3,720.24 mi (5,987.15 km) |
| Allendale to Culcheth | 3,682.87 mi (5,927.00 km) |
| Allendale to Cullercoats | 3,676.95 mi (5,917.48 km) |
| Allendale to Cumbernauld | 3,559.91 mi (5,729.13 km) |
| Allendale to Cumnock | 3,563.15 mi (5,734.33 km) |
| Allendale to Cupar | 3,585.01 mi (5,769.52 km) |
| Allendale to Cwmbran | 3,717.32 mi (5,982.45 km) |
| Allendale to Dagenham | 3,841.98 mi (6,183.06 km) |
| Allendale to Dalkeith | 3,594.66 mi (5,785.05 km) |
| Allendale to Darfield | 3,722.70 mi (5,991.10 km) |
