| Grangemouth to Oliveira de Frades | 1,075.94 mi (1,731.56 km) |
| Grangemouth to Oliveira do Bairro | 1,092.34 mi (1,757.95 km) |
| Grangemouth to Oliveira do Hospital | 1,097.76 mi (1,766.67 km) |
| Grangemouth to Ourem | 1,151.96 mi (1,853.90 km) |
| Grangemouth to Ovar | 1,069.75 mi (1,721.60 km) |
| Grangemouth to Pacos de Ferreira | 1,040.40 mi (1,674.35 km) |
| Grangemouth to Palmela | 1,228.73 mi (1,977.45 km) |
| Grangemouth to Paredes | 1,044.33 mi (1,680.69 km) |
| Grangemouth to Paredes de Coura | 998.04 mi (1,606.19 km) |
| Grangemouth to Penacova | 1,107.21 mi (1,781.88 km) |
| Grangemouth to Penafiel | 1,043.48 mi (1,679.32 km) |
| Grangemouth to Peniche | 1,179.88 mi (1,898.83 km) |
| Grangemouth to Peso da Regua | 1,041.99 mi (1,676.93 km) |
| Grangemouth to Pinhal Novo | 1,224.48 mi (1,970.61 km) |
| Grangemouth to Pinhel | 1,063.05 mi (1,710.81 km) |
