| Olhao to Cascais | 144.10 mi (231.90 km) |
| Olhao to Castelo Branco | 193.70 mi (311.73 km) |
| Olhao to Castro Daire | 267.71 mi (430.84 km) |
| Olhao to Celorico de Basto | 301.18 mi (484.70 km) |
| Olhao to Chamusca | 164.32 mi (264.44 km) |
| Olhao to Chaves | 326.34 mi (525.20 km) |
| Olhao to Cinfaes | 281.92 mi (453.71 km) |
| Olhao to Coimbra | 222.35 mi (357.83 km) |
| Olhao to Condeixa-a-Nova | 216.49 mi (348.41 km) |
| Olhao to Corroios | 130.99 mi (210.81 km) |
| Olhao to Coruche | 138.54 mi (222.96 km) |
| Olhao to Costa de Caparica | 135.27 mi (217.69 km) |
| Olhao to Covilha | 225.81 mi (363.40 km) |
| Olhao to Eiras | 224.43 mi (361.18 km) |
| Olhao to Elvas | 132.63 mi (213.45 km) |
