| Kocaeli to Oliveira de Frades | 1,978.59 mi (3,184.24 km) |
| Kocaeli to Oliveira do Bairro | 1,997.89 mi (3,215.29 km) |
| Kocaeli to Oliveira do Hospital | 1,967.77 mi (3,166.81 km) |
| Kocaeli to Ourem | 2,015.82 mi (3,244.14 km) |
| Kocaeli to Ovar | 1,999.27 mi (3,217.51 km) |
| Kocaeli to Pacos de Ferreira | 1,981.52 mi (3,188.94 km) |
| Kocaeli to Palmela | 2,053.34 mi (3,304.53 km) |
| Kocaeli to Paredes | 1,979.08 mi (3,185.02 km) |
| Kocaeli to Paredes de Coura | 1,980.96 mi (3,188.05 km) |
| Kocaeli to Penacova | 1,990.75 mi (3,203.80 km) |
| Kocaeli to Penafiel | 1,976.48 mi (3,180.84 km) |
| Kocaeli to Peniche | 2,062.40 mi (3,319.12 km) |
| Kocaeli to Peso da Regua | 1,951.24 mi (3,140.21 km) |
| Kocaeli to Pinhal Novo | 2,052.79 mi (3,303.64 km) |
| Kocaeli to Pinhel | 1,920.54 mi (3,090.81 km) |
