| Portimao to Calne | 1,038.57 mi (1,671.42 km) |
| Portimao to Cam | 1,050.46 mi (1,690.55 km) |
| Portimao to Camberley | 1,052.73 mi (1,694.21 km) |
| Portimao to Camborne | 917.62 mi (1,476.76 km) |
| Portimao to Cambridge | 1,122.77 mi (1,806.92 km) |
| Portimao to Cambuslang | 1,306.81 mi (2,103.11 km) |
| Portimao to Canford Cliffs | 992.16 mi (1,596.73 km) |
| Portimao to Cannock | 1,119.78 mi (1,802.11 km) |
| Portimao to Canterbury | 1,084.96 mi (1,746.07 km) |
| Portimao to Carlisle | 1,254.73 mi (2,019.29 km) |
| Portimao to Carlton Colville | 1,168.45 mi (1,880.44 km) |
| Portimao to Carluke | 1,303.57 mi (2,097.90 km) |
| Portimao to Carnoustie | 1,364.83 mi (2,196.47 km) |
| Portimao to Carshalton | 1,065.14 mi (1,714.17 km) |
| Portimao to Carterton | 1,065.70 mi (1,715.08 km) |
