| Willowick to Nuth | 3,972.01 mi (6,392.33 km) |
| Willowick to Oegstgeest | 3,878.12 mi (6,241.24 km) |
| Willowick to Oirschot | 3,931.06 mi (6,326.43 km) |
| Willowick to Oisterwijk | 3,924.62 mi (6,316.06 km) |
| Willowick to Oldebroek | 3,924.10 mi (6,315.23 km) |
| Willowick to Oldenzaal | 3,967.07 mi (6,384.38 km) |
| Willowick to Ommen | 3,941.39 mi (6,343.05 km) |
| Willowick to Oosterend | 3,913.12 mi (6,297.56 km) |
| Willowick to Oosterhout | 3,909.61 mi (6,291.92 km) |
| Willowick to Oosterwolde | 3,921.89 mi (6,311.67 km) |
| Willowick to Oostzaan | 3,886.30 mi (6,254.40 km) |
| Willowick to Opmeer | 3,880.69 mi (6,245.37 km) |
| Willowick to Oss | 3,930.97 mi (6,326.28 km) |
| Willowick to Oud-Beijerland | 3,886.76 mi (6,255.14 km) |
| Willowick to Oudenbosch | 3,898.51 mi (6,274.04 km) |
