| Columbia Heights to Nuth | 4,242.47 mi (6,827.60 km) |
| Columbia Heights to Oegstgeest | 4,141.37 mi (6,664.90 km) |
| Columbia Heights to Oirschot | 4,198.02 mi (6,756.06 km) |
| Columbia Heights to Oisterwijk | 4,191.14 mi (6,744.98 km) |
| Columbia Heights to Oldebroek | 4,179.19 mi (6,725.76 km) |
| Columbia Heights to Oldenzaal | 4,219.52 mi (6,790.66 km) |
| Columbia Heights to Ommen | 4,193.83 mi (6,749.31 km) |
| Columbia Heights to Oosterend | 4,161.95 mi (6,698.01 km) |
| Columbia Heights to Oosterhout | 4,176.85 mi (6,722.00 km) |
| Columbia Heights to Oosterwolde | 4,170.01 mi (6,710.98 km) |
| Columbia Heights to Oostzaan | 4,145.43 mi (6,671.42 km) |
| Columbia Heights to Opmeer | 4,136.84 mi (6,657.59 km) |
| Columbia Heights to Oss | 4,194.42 mi (6,750.27 km) |
| Columbia Heights to Oud-Beijerland | 4,153.99 mi (6,685.21 km) |
| Columbia Heights to Oudenbosch | 4,167.56 mi (6,707.05 km) |
