| Fort Washington to Nuth | 3,929.24 mi (6,323.51 km) |
| Fort Washington to Oegstgeest | 3,840.45 mi (6,180.60 km) |
| Fort Washington to Oirschot | 3,890.70 mi (6,261.48 km) |
| Fort Washington to Oisterwijk | 3,884.58 mi (6,251.64 km) |
| Fort Washington to Oldebroek | 3,890.28 mi (6,260.79 km) |
| Fort Washington to Oldenzaal | 3,934.15 mi (6,331.40 km) |
| Fort Washington to Ommen | 3,908.78 mi (6,290.58 km) |
| Fort Washington to Oosterend | 3,882.81 mi (6,248.78 km) |
| Fort Washington to Oosterhout | 3,869.37 mi (6,227.15 km) |
| Fort Washington to Oosterwolde | 3,891.86 mi (6,263.35 km) |
| Fort Washington to Oostzaan | 3,850.76 mi (6,197.21 km) |
| Fort Washington to Opmeer | 3,846.84 mi (6,190.89 km) |
| Fort Washington to Oss | 3,892.53 mi (6,264.41 km) |
| Fort Washington to Oud-Beijerland | 3,846.81 mi (6,190.84 km) |
| Fort Washington to Oudenbosch | 3,857.41 mi (6,207.90 km) |
