| Groslay to Oliveira do Bairro | 789.41 mi (1,270.43 km) |
| Groslay to Oliveira do Hospital | 777.61 mi (1,251.44 km) |
| Groslay to Ourem | 839.15 mi (1,350.48 km) |
| Groslay to Ovar | 775.10 mi (1,247.41 km) |
| Groslay to Pacos de Ferreira | 746.17 mi (1,200.85 km) |
| Groslay to Palmela | 910.64 mi (1,465.53 km) |
| Groslay to Paredes | 747.42 mi (1,202.86 km) |
| Groslay to Paredes de Coura | 718.67 mi (1,156.59 km) |
| Groslay to Penacova | 795.81 mi (1,280.73 km) |
| Groslay to Penafiel | 745.44 mi (1,199.68 km) |
| Groslay to Peniche | 881.24 mi (1,418.22 km) |
| Groslay to Peso da Regua | 730.78 mi (1,176.08 km) |
| Groslay to Pinhal Novo | 907.39 mi (1,460.31 km) |
| Groslay to Pinhel | 729.27 mi (1,173.65 km) |
| Groslay to Pombal | 826.34 mi (1,329.86 km) |
