| Fountain Hills to Nuth | 5,476.99 mi (8,814.36 km) |
| Fountain Hills to Oegstgeest | 5,373.77 mi (8,648.24 km) |
| Fountain Hills to Oirschot | 5,431.47 mi (8,741.11 km) |
| Fountain Hills to Oisterwijk | 5,424.46 mi (8,729.82 km) |
| Fountain Hills to Oldebroek | 5,407.73 mi (8,702.89 km) |
| Fountain Hills to Oldenzaal | 5,446.47 mi (8,765.25 km) |
| Fountain Hills to Ommen | 5,421.02 mi (8,724.30 km) |
| Fountain Hills to Oosterend | 5,387.82 mi (8,670.86 km) |
| Fountain Hills to Oosterhout | 5,410.60 mi (8,707.51 km) |
| Fountain Hills to Oosterwolde | 5,395.46 mi (8,683.16 km) |
| Fountain Hills to Oostzaan | 5,376.04 mi (8,651.89 km) |
| Fountain Hills to Opmeer | 5,366.23 mi (8,636.11 km) |
| Fountain Hills to Oss | 5,426.44 mi (8,733.01 km) |
| Fountain Hills to Oud-Beijerland | 5,387.93 mi (8,671.03 km) |
| Fountain Hills to Oudenbosch | 5,402.13 mi (8,693.88 km) |
