| Okemos to Nuth | 4,034.68 mi (6,493.19 km) |
| Okemos to Oegstgeest | 3,938.53 mi (6,338.46 km) |
| Okemos to Oirschot | 3,992.65 mi (6,425.55 km) |
| Okemos to Oisterwijk | 3,986.07 mi (6,414.96 km) |
| Okemos to Oldebroek | 3,982.40 mi (6,409.05 km) |
| Okemos to Oldenzaal | 4,024.77 mi (6,477.24 km) |
| Okemos to Ommen | 3,999.00 mi (6,435.77 km) |
| Okemos to Oosterend | 3,969.66 mi (6,388.55 km) |
| Okemos to Oosterhout | 3,971.22 mi (6,391.06 km) |
| Okemos to Oosterwolde | 3,978.26 mi (6,402.39 km) |
| Okemos to Oostzaan | 3,945.60 mi (6,349.83 km) |
| Okemos to Opmeer | 3,939.15 mi (6,339.45 km) |
| Okemos to Oss | 3,991.59 mi (6,423.85 km) |
| Okemos to Oud-Beijerland | 3,948.30 mi (6,354.18 km) |
| Okemos to Oudenbosch | 3,960.58 mi (6,373.94 km) |
