| Niles to Cascais | 3,982.57 mi (6,409.33 km) |
| Niles to Castelo Branco | 4,031.57 mi (6,488.19 km) |
| Niles to Castro Daire | 3,974.13 mi (6,395.74 km) |
| Niles to Celorico de Basto | 3,954.54 mi (6,364.22 km) |
| Niles to Chamusca | 4,002.92 mi (6,442.07 km) |
| Niles to Chaves | 3,966.10 mi (6,382.81 km) |
| Niles to Cinfaes | 3,958.21 mi (6,370.12 km) |
| Niles to Coimbra | 3,975.37 mi (6,397.74 km) |
| Niles to Condeixa-a-Nova | 3,975.41 mi (6,397.80 km) |
| Niles to Corroios | 3,997.92 mi (6,434.03 km) |
| Niles to Coruche | 4,014.74 mi (6,461.10 km) |
| Niles to Costa de Caparica | 3,992.93 mi (6,426.00 km) |
| Niles to Covilha | 4,015.19 mi (6,461.83 km) |
| Niles to Eiras | 3,974.54 mi (6,396.40 km) |
| Niles to Elvas | 4,081.40 mi (6,568.37 km) |
