| Circleville to Cascais | 3,821.24 mi (6,149.68 km) |
| Circleville to Castelo Branco | 3,879.44 mi (6,243.35 km) |
| Circleville to Castro Daire | 3,826.42 mi (6,158.04 km) |
| Circleville to Celorico de Basto | 3,809.11 mi (6,130.18 km) |
| Circleville to Chamusca | 3,846.56 mi (6,190.44 km) |
| Circleville to Chaves | 3,823.48 mi (6,153.30 km) |
| Circleville to Cinfaes | 3,811.11 mi (6,133.39 km) |
| Circleville to Coimbra | 3,823.31 mi (6,153.02 km) |
| Circleville to Condeixa-a-Nova | 3,822.74 mi (6,152.11 km) |
| Circleville to Corroios | 3,836.71 mi (6,174.59 km) |
| Circleville to Coruche | 3,856.42 mi (6,206.31 km) |
| Circleville to Costa de Caparica | 3,831.69 mi (6,166.51 km) |
| Circleville to Covilha | 3,865.31 mi (6,220.62 km) |
| Circleville to Eiras | 3,822.63 mi (6,151.93 km) |
| Circleville to Elvas | 3,925.44 mi (6,317.38 km) |
