| Fountain Valley to Nuth | 5,667.15 mi (9,120.40 km) |
| Fountain Valley to Oegstgeest | 5,562.18 mi (8,951.46 km) |
| Fountain Valley to Oirschot | 5,620.71 mi (9,045.66 km) |
| Fountain Valley to Oisterwijk | 5,613.60 mi (9,034.21 km) |
| Fountain Valley to Oldebroek | 5,591.86 mi (8,999.22 km) |
| Fountain Valley to Oldenzaal | 5,628.76 mi (9,058.61 km) |
| Fountain Valley to Ommen | 5,603.71 mi (9,018.30 km) |
| Fountain Valley to Oosterend | 5,569.38 mi (8,963.05 km) |
| Fountain Valley to Oosterhout | 5,600.27 mi (9,012.77 km) |
| Fountain Valley to Oosterwolde | 5,576.57 mi (8,974.62 km) |
| Fountain Valley to Oostzaan | 5,562.52 mi (8,952.02 km) |
| Fountain Valley to Opmeer | 5,551.50 mi (8,934.28 km) |
| Fountain Valley to Oss | 5,614.13 mi (9,035.07 km) |
| Fountain Valley to Oud-Beijerland | 5,577.95 mi (8,976.84 km) |
| Fountain Valley to Oudenbosch | 5,592.77 mi (9,000.69 km) |
