| Ada to Cascais | 1,578.42 mi (2,540.22 km) |
| Ada to Castelo Branco | 1,452.17 mi (2,337.04 km) |
| Ada to Castro Daire | 1,442.14 mi (2,320.91 km) |
| Ada to Celorico de Basto | 1,432.63 mi (2,305.60 km) |
| Ada to Chamusca | 1,513.37 mi (2,435.53 km) |
| Ada to Chaves | 1,398.19 mi (2,250.17 km) |
| Ada to Cinfaes | 1,446.42 mi (2,327.80 km) |
| Ada to Coimbra | 1,485.15 mi (2,390.12 km) |
| Ada to Condeixa-a-Nova | 1,491.27 mi (2,399.96 km) |
| Ada to Corroios | 1,568.48 mi (2,524.22 km) |
| Ada to Coruche | 1,527.74 mi (2,458.67 km) |
| Ada to Costa de Caparica | 1,571.56 mi (2,529.18 km) |
| Ada to Covilha | 1,438.50 mi (2,315.04 km) |
| Ada to Eiras | 1,484.01 mi (2,388.29 km) |
| Ada to Elvas | 1,465.05 mi (2,357.76 km) |
