| Clemmons to Caldicot | 3,824.57 mi (6,155.05 km) |
| Clemmons to Calne | 3,858.25 mi (6,209.26 km) |
| Clemmons to Cam | 3,838.27 mi (6,177.10 km) |
| Clemmons to Camberley | 3,912.37 mi (6,296.35 km) |
| Clemmons to Camborne | 3,743.64 mi (6,024.81 km) |
| Clemmons to Cambridge | 3,929.14 mi (6,323.34 km) |
| Clemmons to Cambuslang | 3,696.34 mi (5,948.68 km) |
| Clemmons to Canford Cliffs | 3,876.34 mi (6,238.36 km) |
| Clemmons to Cannock | 3,832.92 mi (6,168.49 km) |
| Clemmons to Canterbury | 3,988.27 mi (6,418.50 km) |
| Clemmons to Carlisle | 3,757.63 mi (6,047.32 km) |
| Clemmons to Carlton Colville | 3,986.83 mi (6,416.19 km) |
| Clemmons to Carluke | 3,710.24 mi (5,971.06 km) |
| Clemmons to Carnoustie | 3,740.79 mi (6,020.21 km) |
| Clemmons to Carshalton | 3,935.32 mi (6,333.28 km) |
