| Tortona to Oliveira do Bairro | 929.94 mi (1,496.60 km) |
| Tortona to Oliveira do Hospital | 904.27 mi (1,455.28 km) |
| Tortona to Ourem | 959.63 mi (1,544.38 km) |
| Tortona to Ovar | 926.49 mi (1,491.04 km) |
| Tortona to Pacos de Ferreira | 904.66 mi (1,455.90 km) |
| Tortona to Palmela | 1,012.13 mi (1,628.86 km) |
| Tortona to Paredes | 903.17 mi (1,453.51 km) |
| Tortona to Paredes de Coura | 896.87 mi (1,443.37 km) |
| Tortona to Penacova | 926.89 mi (1,491.68 km) |
| Tortona to Penafiel | 900.64 mi (1,449.44 km) |
| Tortona to Peniche | 1,007.02 mi (1,620.65 km) |
| Tortona to Peso da Regua | 877.31 mi (1,411.89 km) |
| Tortona to Pinhal Novo | 1,010.48 mi (1,626.21 km) |
| Tortona to Pinhel | 853.99 mi (1,374.36 km) |
| Tortona to Pombal | 954.08 mi (1,535.45 km) |
