| Gourock to Arcos de Valdevez | 987.96 mi (1,589.97 km) |
| Gourock to Arcozelo | 1,043.73 mi (1,679.73 km) |
| Gourock to Arganil | 1,097.15 mi (1,765.69 km) |
| Gourock to Arouca | 1,049.28 mi (1,688.65 km) |
| Gourock to Arruda dos Vinhos | 1,188.67 mi (1,912.97 km) |
| Gourock to Aveiro | 1,072.69 mi (1,726.33 km) |
| Gourock to Aver-o-Mar | 1,020.91 mi (1,643.00 km) |
| Gourock to Aves | 1,014.98 mi (1,633.45 km) |
| Gourock to Azambuja | 1,181.48 mi (1,901.42 km) |
| Gourock to Baiao | 1,031.93 mi (1,660.74 km) |
| Gourock to Barcelos | 1,012.03 mi (1,628.71 km) |
| Gourock to Barreiro | 1,210.33 mi (1,947.84 km) |
| Gourock to Batalha | 1,141.07 mi (1,836.38 km) |
| Gourock to Beja | 1,246.28 mi (2,005.70 km) |
| Gourock to Belas | 1,204.46 mi (1,938.39 km) |
