| Peso da Regua to Opole | 1,389.34 mi (2,235.93 km) |
| Peso da Regua to Orzesze | 1,413.29 mi (2,274.46 km) |
| Peso da Regua to Osowa | 1,509.52 mi (2,429.33 km) |
| Peso da Regua to Ostroda | 1,543.68 mi (2,484.31 km) |
| Peso da Regua to Ostroleka | 1,589.53 mi (2,558.10 km) |
| Peso da Regua to Ostrow Mazowiecka | 1,596.74 mi (2,569.70 km) |
| Peso da Regua to Ostrow Wielkopolski | 1,407.29 mi (2,264.81 km) |
| Peso da Regua to Ostrowiec Swietokrzyski | 1,539.77 mi (2,478.01 km) |
| Peso da Regua to Ostrzeszow | 1,406.36 mi (2,263.32 km) |
| Peso da Regua to Oswiecim | 1,431.38 mi (2,303.58 km) |
| Peso da Regua to Otwock | 1,556.86 mi (2,505.53 km) |
| Peso da Regua to Ozarow Mazowiecki | 1,540.17 mi (2,478.66 km) |
| Peso da Regua to Ozimek | 1,401.13 mi (2,254.90 km) |
| Peso da Regua to Ozorkow | 1,473.67 mi (2,371.64 km) |
| Peso da Regua to Pabianice | 1,470.49 mi (2,366.53 km) |
