| Zachary to Nuth | 4,889.76 mi (7,869.30 km) |
| Zachary to Oegstgeest | 4,797.99 mi (7,721.62 km) |
| Zachary to Oirschot | 4,849.84 mi (7,805.07 km) |
| Zachary to Oisterwijk | 4,843.53 mi (7,794.92 km) |
| Zachary to Oldebroek | 4,845.54 mi (7,798.14 km) |
| Zachary to Oldenzaal | 4,888.89 mi (7,867.91 km) |
| Zachary to Ommen | 4,863.30 mi (7,826.72 km) |
| Zachary to Oosterend | 4,835.83 mi (7,782.51 km) |
| Zachary to Oosterhout | 4,828.43 mi (7,770.60 km) |
| Zachary to Oosterwolde | 4,844.71 mi (7,796.80 km) |
| Zachary to Oostzaan | 4,807.04 mi (7,736.18 km) |
| Zachary to Opmeer | 4,802.08 mi (7,728.20 km) |
| Zachary to Oss | 4,850.57 mi (7,806.24 km) |
| Zachary to Oud-Beijerland | 4,805.68 mi (7,733.99 km) |
| Zachary to Oudenbosch | 4,816.93 mi (7,752.10 km) |
