| Orbetello to Castelo Branco | 988.46 mi (1,590.78 km) |
| Orbetello to Castro Daire | 991.73 mi (1,596.03 km) |
| Orbetello to Celorico de Basto | 988.44 mi (1,590.74 km) |
| Orbetello to Chamusca | 1,048.06 mi (1,686.69 km) |
| Orbetello to Chaves | 957.27 mi (1,540.58 km) |
| Orbetello to Cinfaes | 999.03 mi (1,607.78 km) |
| Orbetello to Coimbra | 1,028.34 mi (1,654.95 km) |
| Orbetello to Condeixa-a-Nova | 1,033.66 mi (1,663.51 km) |
| Orbetello to Corroios | 1,098.66 mi (1,768.13 km) |
| Orbetello to Coruche | 1,059.01 mi (1,704.32 km) |
| Orbetello to Costa de Caparica | 1,102.24 mi (1,773.88 km) |
| Orbetello to Covilha | 979.71 mi (1,576.69 km) |
| Orbetello to Eiras | 1,027.52 mi (1,653.64 km) |
| Orbetello to Elvas | 991.50 mi (1,595.67 km) |
| Orbetello to Entroncamento | 1,044.84 mi (1,681.51 km) |
