| Petersburg to Nuth | 4,015.61 mi (6,462.51 km) |
| Petersburg to Oegstgeest | 3,927.97 mi (6,321.45 km) |
| Petersburg to Oirschot | 3,977.61 mi (6,401.35 km) |
| Petersburg to Oisterwijk | 3,971.57 mi (6,391.63 km) |
| Petersburg to Oldebroek | 3,978.52 mi (6,402.81 km) |
| Petersburg to Oldenzaal | 4,022.53 mi (6,473.63 km) |
| Petersburg to Ommen | 3,997.25 mi (6,432.96 km) |
| Petersburg to Oosterend | 3,971.76 mi (6,391.93 km) |
| Petersburg to Oosterhout | 3,956.33 mi (6,367.10 km) |
| Petersburg to Oosterwolde | 3,980.86 mi (6,406.57 km) |
| Petersburg to Oostzaan | 3,938.71 mi (6,338.73 km) |
| Petersburg to Opmeer | 3,935.13 mi (6,332.97 km) |
| Petersburg to Oss | 3,979.83 mi (6,404.92 km) |
| Petersburg to Oud-Beijerland | 3,933.85 mi (6,330.93 km) |
| Petersburg to Oudenbosch | 3,944.20 mi (6,347.58 km) |
