| Trowbridge to Arcos de Valdevez | 717.25 mi (1,154.31 km) |
| Trowbridge to Arcozelo | 772.32 mi (1,242.94 km) |
| Trowbridge to Arganil | 816.53 mi (1,314.07 km) |
| Trowbridge to Arouca | 773.00 mi (1,244.02 km) |
| Trowbridge to Arruda dos Vinhos | 914.57 mi (1,471.86 km) |
| Trowbridge to Aveiro | 799.79 mi (1,287.13 km) |
| Trowbridge to Aver-o-Mar | 752.44 mi (1,210.94 km) |
| Trowbridge to Aves | 741.20 mi (1,192.85 km) |
| Trowbridge to Azambuja | 905.65 mi (1,457.50 km) |
| Trowbridge to Baiao | 754.13 mi (1,213.66 km) |
| Trowbridge to Barcelos | 742.26 mi (1,194.54 km) |
| Trowbridge to Barreiro | 935.28 mi (1,505.18 km) |
| Trowbridge to Batalha | 866.38 mi (1,394.30 km) |
| Trowbridge to Beja | 958.70 mi (1,542.88 km) |
| Trowbridge to Belas | 931.75 mi (1,499.51 km) |
