| Gebze to Oliveira de Frades | 1,953.30 mi (3,143.53 km) |
| Gebze to Oliveira do Bairro | 1,972.58 mi (3,174.56 km) |
| Gebze to Oliveira do Hospital | 1,942.43 mi (3,126.04 km) |
| Gebze to Ourem | 1,990.44 mi (3,203.30 km) |
| Gebze to Ovar | 1,974.00 mi (3,176.85 km) |
| Gebze to Pacos de Ferreira | 1,956.29 mi (3,148.34 km) |
| Gebze to Palmela | 2,027.90 mi (3,263.59 km) |
| Gebze to Paredes | 1,953.84 mi (3,144.41 km) |
| Gebze to Paredes de Coura | 1,955.83 mi (3,147.60 km) |
| Gebze to Penacova | 1,965.41 mi (3,163.03 km) |
| Gebze to Penafiel | 1,951.25 mi (3,140.23 km) |
| Gebze to Peniche | 2,037.01 mi (3,278.26 km) |
| Gebze to Peso da Regua | 1,925.99 mi (3,099.57 km) |
| Gebze to Pinhal Novo | 2,027.35 mi (3,262.71 km) |
| Gebze to Pinhel | 1,895.24 mi (3,050.09 km) |
