| Swansea to Caldicot | 4,091.59 mi (6,584.79 km) |
| Swansea to Calne | 4,125.07 mi (6,638.66 km) |
| Swansea to Cam | 4,103.41 mi (6,603.81 km) |
| Swansea to Camberley | 4,177.27 mi (6,722.66 km) |
| Swansea to Camborne | 4,029.21 mi (6,484.38 km) |
| Swansea to Cambridge | 4,183.95 mi (6,733.41 km) |
| Swansea to Cambuslang | 3,924.35 mi (6,315.64 km) |
| Swansea to Canford Cliffs | 4,149.86 mi (6,678.55 km) |
| Swansea to Cannock | 4,087.90 mi (6,578.84 km) |
| Swansea to Canterbury | 4,249.35 mi (6,838.66 km) |
| Swansea to Carlisle | 3,992.86 mi (6,425.89 km) |
| Swansea to Carlton Colville | 4,235.65 mi (6,816.62 km) |
| Swansea to Carluke | 3,938.55 mi (6,338.48 km) |
| Swansea to Carnoustie | 3,959.22 mi (6,371.74 km) |
| Swansea to Carshalton | 4,198.59 mi (6,756.98 km) |
