| North Decatur to Nuth | 4,457.35 mi (7,173.40 km) |
| North Decatur to Oegstgeest | 4,367.89 mi (7,029.43 km) |
| North Decatur to Oirschot | 4,418.51 mi (7,110.91 km) |
| North Decatur to Oisterwijk | 4,412.35 mi (7,100.99 km) |
| North Decatur to Oldebroek | 4,417.18 mi (7,108.76 km) |
| North Decatur to Oldenzaal | 4,460.93 mi (7,179.18 km) |
| North Decatur to Ommen | 4,435.50 mi (7,138.25 km) |
| North Decatur to Oosterend | 4,409.13 mi (7,095.81 km) |
| North Decatur to Oosterhout | 4,397.16 mi (7,076.54 km) |
| North Decatur to Oosterwolde | 4,418.14 mi (7,110.31 km) |
| North Decatur to Oostzaan | 4,377.91 mi (7,045.56 km) |
| North Decatur to Opmeer | 4,373.72 mi (7,038.83 km) |
| North Decatur to Oss | 4,420.09 mi (7,113.45 km) |
| North Decatur to Oud-Beijerland | 4,374.55 mi (7,040.16 km) |
| North Decatur to Oudenbosch | 4,385.29 mi (7,057.44 km) |
