| Gradsko to Oegstgeest | 1,098.52 mi (1,767.89 km) |
| Gradsko to Oirschot | 1,042.38 mi (1,677.54 km) |
| Gradsko to Oisterwijk | 1,049.18 mi (1,688.50 km) |
| Gradsko to Oldebroek | 1,061.07 mi (1,707.62 km) |
| Gradsko to Oldenzaal | 1,021.64 mi (1,644.17 km) |
| Gradsko to Ommen | 1,047.18 mi (1,685.27 km) |
| Gradsko to Oosterend | 1,080.11 mi (1,738.27 km) |
| Gradsko to Oosterhout | 1,063.66 mi (1,711.80 km) |
| Gradsko to Oosterwolde | 1,072.43 mi (1,725.90 km) |
| Gradsko to Oostzaan | 1,094.30 mi (1,761.11 km) |
| Gradsko to Opmeer | 1,103.13 mi (1,775.32 km) |
| Gradsko to Oss | 1,045.42 mi (1,682.43 km) |
| Gradsko to Oud-Beijerland | 1,086.58 mi (1,748.69 km) |
| Gradsko to Oudenbosch | 1,073.48 mi (1,727.61 km) |
| Gradsko to Oudewater | 1,078.01 mi (1,734.89 km) |
