| Peso da Regua to Nuth | 936.86 mi (1,507.73 km) |
| Peso da Regua to Oegstgeest | 954.56 mi (1,536.22 km) |
| Peso da Regua to Oirschot | 945.32 mi (1,521.34 km) |
| Peso da Regua to Oisterwijk | 946.25 mi (1,522.84 km) |
| Peso da Regua to Oldebroek | 1,009.56 mi (1,624.73 km) |
| Peso da Regua to Oldenzaal | 1,034.70 mi (1,665.19 km) |
| Peso da Regua to Ommen | 1,028.28 mi (1,654.86 km) |
| Peso da Regua to Oosterend | 1,041.78 mi (1,676.59 km) |
| Peso da Regua to Oosterhout | 938.75 mi (1,510.78 km) |
| Peso da Regua to Oosterwolde | 1,047.64 mi (1,686.01 km) |
| Peso da Regua to Oostzaan | 979.18 mi (1,575.84 km) |
| Peso da Regua to Opmeer | 994.73 mi (1,600.87 km) |
| Peso da Regua to Oss | 964.81 mi (1,552.71 km) |
| Peso da Regua to Oud-Beijerland | 933.94 mi (1,503.03 km) |
| Peso da Regua to Oudenbosch | 926.13 mi (1,490.47 km) |
