| Nieder-Olm to Oegstgeest | 225.88 mi (363.52 km) |
| Nieder-Olm to Oirschot | 167.99 mi (270.36 km) |
| Nieder-Olm to Oisterwijk | 174.98 mi (281.61 km) |
| Nieder-Olm to Oldebroek | 201.94 mi (324.99 km) |
| Nieder-Olm to Oldenzaal | 175.27 mi (282.07 km) |
| Nieder-Olm to Ommen | 196.09 mi (315.57 km) |
| Nieder-Olm to Oosterend | 232.78 mi (374.62 km) |
| Nieder-Olm to Oosterhout | 189.01 mi (304.19 km) |
| Nieder-Olm to Oosterwolde | 228.28 mi (367.37 km) |
| Nieder-Olm to Oostzaan | 226.04 mi (363.78 km) |
| Nieder-Olm to Opmeer | 238.59 mi (383.97 km) |
| Nieder-Olm to Oss | 173.83 mi (279.75 km) |
| Nieder-Olm to Oud-Beijerland | 211.83 mi (340.90 km) |
| Nieder-Olm to Oudenbosch | 198.34 mi (319.20 km) |
| Nieder-Olm to Oudewater | 205.62 mi (330.92 km) |
