| Cape Girardeau to Nuth | 4,489.66 mi (7,225.41 km) |
| Cape Girardeau to Oegstgeest | 4,394.52 mi (7,072.29 km) |
| Cape Girardeau to Oirschot | 4,448.12 mi (7,158.56 km) |
| Cape Girardeau to Oisterwijk | 4,441.60 mi (7,148.06 km) |
| Cape Girardeau to Oldebroek | 4,439.27 mi (7,144.31 km) |
| Cape Girardeau to Oldenzaal | 4,481.88 mi (7,212.89 km) |
| Cape Girardeau to Ommen | 4,456.14 mi (7,171.47 km) |
| Cape Girardeau to Oosterend | 4,427.19 mi (7,124.88 km) |
| Cape Girardeau to Oosterhout | 4,426.68 mi (7,124.05 km) |
| Cape Girardeau to Oosterwolde | 4,435.86 mi (7,138.82 km) |
| Cape Girardeau to Oostzaan | 4,402.05 mi (7,084.42 km) |
| Cape Girardeau to Opmeer | 4,395.94 mi (7,074.59 km) |
| Cape Girardeau to Oss | 4,447.49 mi (7,157.55 km) |
| Cape Girardeau to Oud-Beijerland | 4,403.78 mi (7,087.20 km) |
| Cape Girardeau to Oudenbosch | 4,415.82 mi (7,106.58 km) |
