| Fort Campbell North to Nuth | 4,441.83 mi (7,148.44 km) |
| Fort Campbell North to Oegstgeest | 4,348.28 mi (6,997.88 km) |
| Fort Campbell North to Oirschot | 4,401.05 mi (7,082.81 km) |
| Fort Campbell North to Oisterwijk | 4,394.63 mi (7,072.48 km) |
| Fort Campbell North to Oldebroek | 4,394.45 mi (7,072.19 km) |
| Fort Campbell North to Oldenzaal | 4,437.46 mi (7,141.41 km) |
| Fort Campbell North to Ommen | 4,411.79 mi (7,100.09 km) |
| Fort Campbell North to Oosterend | 4,383.58 mi (7,054.70 km) |
| Fort Campbell North to Oosterhout | 4,379.61 mi (7,048.31 km) |
| Fort Campbell North to Oosterwolde | 4,392.36 mi (7,068.83 km) |
| Fort Campbell North to Oostzaan | 4,356.57 mi (7,011.23 km) |
| Fort Campbell North to Opmeer | 4,351.04 mi (7,002.32 km) |
| Fort Campbell North to Oss | 4,401.09 mi (7,082.87 km) |
| Fort Campbell North to Oud-Beijerland | 4,356.78 mi (7,011.56 km) |
| Fort Campbell North to Oudenbosch | 4,368.44 mi (7,030.32 km) |
