| North Port to Nuth | 4,709.91 mi (7,579.86 km) |
| North Port to Oegstgeest | 4,627.58 mi (7,447.37 km) |
| North Port to Oirschot | 4,674.43 mi (7,522.76 km) |
| North Port to Oisterwijk | 4,668.72 mi (7,513.59 km) |
| North Port to Oldebroek | 4,681.02 mi (7,533.38 km) |
| North Port to Oldenzaal | 4,725.43 mi (7,604.85 km) |
| North Port to Ommen | 4,700.63 mi (7,564.94 km) |
| North Port to Oosterend | 4,677.26 mi (7,527.33 km) |
| North Port to Oosterhout | 4,653.44 mi (7,488.98 km) |
| North Port to Oosterwolde | 4,686.51 mi (7,542.21 km) |
| North Port to Oostzaan | 4,640.08 mi (7,467.48 km) |
| North Port to Opmeer | 4,637.96 mi (7,464.08 km) |
| North Port to Oss | 4,678.32 mi (7,529.03 km) |
| North Port to Oud-Beijerland | 4,631.41 mi (7,453.54 km) |
| North Port to Oudenbosch | 4,640.65 mi (7,468.40 km) |
