| Forest Lake to Nuth | 4,222.49 mi (6,795.44 km) |
| Forest Lake to Oegstgeest | 4,121.39 mi (6,632.74 km) |
| Forest Lake to Oirschot | 4,178.04 mi (6,723.90 km) |
| Forest Lake to Oisterwijk | 4,171.15 mi (6,712.82 km) |
| Forest Lake to Oldebroek | 4,159.21 mi (6,693.61 km) |
| Forest Lake to Oldenzaal | 4,199.54 mi (6,758.51 km) |
| Forest Lake to Ommen | 4,173.85 mi (6,717.16 km) |
| Forest Lake to Oosterend | 4,141.98 mi (6,665.87 km) |
| Forest Lake to Oosterhout | 4,156.87 mi (6,689.84 km) |
| Forest Lake to Oosterwolde | 4,150.03 mi (6,678.83 km) |
| Forest Lake to Oostzaan | 4,125.44 mi (6,639.26 km) |
| Forest Lake to Opmeer | 4,116.85 mi (6,625.44 km) |
| Forest Lake to Oss | 4,174.44 mi (6,718.11 km) |
| Forest Lake to Oud-Beijerland | 4,134.01 mi (6,653.05 km) |
| Forest Lake to Oudenbosch | 4,147.58 mi (6,674.89 km) |
