| Mainz to Oliveira do Bairro | 1,041.37 mi (1,675.92 km) |
| Mainz to Oliveira do Hospital | 1,025.44 mi (1,650.29 km) |
| Mainz to Ourem | 1,086.59 mi (1,748.70 km) |
| Mainz to Ovar | 1,029.62 mi (1,657.01 km) |
| Mainz to Pacos de Ferreira | 1,001.89 mi (1,612.38 km) |
| Mainz to Palmela | 1,153.95 mi (1,857.10 km) |
| Mainz to Paredes | 1,002.46 mi (1,613.31 km) |
| Mainz to Paredes de Coura | 978.57 mi (1,574.86 km) |
| Mainz to Penacova | 1,045.31 mi (1,682.27 km) |
| Mainz to Penafiel | 1,000.30 mi (1,609.83 km) |
| Mainz to Peniche | 1,131.00 mi (1,820.18 km) |
| Mainz to Peso da Regua | 983.02 mi (1,582.02 km) |
| Mainz to Pinhal Novo | 1,151.12 mi (1,852.54 km) |
| Mainz to Pinhel | 975.30 mi (1,569.60 km) |
| Mainz to Pombal | 1,075.57 mi (1,730.96 km) |
