| Round Rock to Torres Vedras | 4,849.53 mi (7,804.57 km) |
| Round Rock to Trancoso | 4,894.55 mi (7,877.01 km) |
| Round Rock to Trofa | 4,821.44 mi (7,759.36 km) |
| Round Rock to Vagos | 4,837.20 mi (7,784.72 km) |
| Round Rock to Valadares | 4,824.33 mi (7,764.01 km) |
| Round Rock to Valbom | 4,826.71 mi (7,767.83 km) |
| Round Rock to Vale de Cambra | 4,842.50 mi (7,793.24 km) |
| Round Rock to Valenca | 4,799.42 mi (7,723.91 km) |
| Round Rock to Valongo | 4,828.51 mi (7,770.74 km) |
| Round Rock to Vendas Novas | 4,900.91 mi (7,887.25 km) |
| Round Rock to Viana do Castelo | 4,798.54 mi (7,722.50 km) |
| Round Rock to Vieira do Minho | 4,833.54 mi (7,778.84 km) |
| Round Rock to Vila do Conde | 4,812.22 mi (7,744.51 km) |
| Round Rock to Vila Franca do Campo | 4,059.62 mi (6,533.33 km) |
| Round Rock to Vila Nova de Cerveira | 4,798.41 mi (7,722.30 km) |
