| Calne to Cascais | 950.34 mi (1,529.42 km) |
| Calne to Castelo Branco | 845.10 mi (1,360.06 km) |
| Calne to Castro Daire | 780.77 mi (1,256.52 km) |
| Calne to Celorico de Basto | 750.50 mi (1,207.81 km) |
| Calne to Chamusca | 891.52 mi (1,434.76 km) |
| Calne to Chaves | 718.04 mi (1,155.57 km) |
| Calne to Cinfaes | 771.26 mi (1,241.22 km) |
| Calne to Coimbra | 834.30 mi (1,342.68 km) |
| Calne to Condeixa-a-Nova | 841.70 mi (1,354.58 km) |
| Calne to Corroios | 951.13 mi (1,530.70 km) |
| Calne to Coruche | 918.05 mi (1,477.47 km) |
| Calne to Costa de Caparica | 950.68 mi (1,529.97 km) |
| Calne to Covilha | 814.22 mi (1,310.36 km) |
| Calne to Eiras | 832.19 mi (1,339.28 km) |
| Calne to Elvas | 903.47 mi (1,454.00 km) |
