| Clemmons to Cromer | 3,960.99 mi (6,374.60 km) |
| Clemmons to Crosby | 3,778.04 mi (6,080.17 km) |
| Clemmons to Crowborough | 3,955.39 mi (6,365.59 km) |
| Clemmons to Croxley Green | 3,917.98 mi (6,305.38 km) |
| Clemmons to Croydon | 3,937.52 mi (6,336.83 km) |
| Clemmons to Cudworth | 3,840.53 mi (6,180.74 km) |
| Clemmons to Culcheth | 3,799.04 mi (6,113.96 km) |
| Clemmons to Cullercoats | 3,813.27 mi (6,136.87 km) |
| Clemmons to Cumbernauld | 3,701.04 mi (5,956.24 km) |
| Clemmons to Cumnock | 3,698.08 mi (5,951.48 km) |
| Clemmons to Cupar | 3,732.38 mi (6,006.69 km) |
| Clemmons to Cwmbran | 3,812.18 mi (6,135.11 km) |
| Clemmons to Dagenham | 3,944.25 mi (6,347.65 km) |
| Clemmons to Dalkeith | 3,737.12 mi (6,014.32 km) |
| Clemmons to Darfield | 3,842.62 mi (6,184.11 km) |
