| Roswell to Nuth | 4,448.39 mi (7,159.00 km) |
| Roswell to Oegstgeest | 4,358.71 mi (7,014.67 km) |
| Roswell to Oirschot | 4,409.45 mi (7,096.33 km) |
| Roswell to Oisterwijk | 4,403.28 mi (7,086.39 km) |
| Roswell to Oldebroek | 4,407.85 mi (7,093.75 km) |
| Roswell to Oldenzaal | 4,451.58 mi (7,164.12 km) |
| Roswell to Ommen | 4,426.13 mi (7,123.17 km) |
| Roswell to Oosterend | 4,399.66 mi (7,080.57 km) |
| Roswell to Oosterhout | 4,388.09 mi (7,061.95 km) |
| Roswell to Oosterwolde | 4,408.66 mi (7,095.05 km) |
| Roswell to Oostzaan | 4,368.65 mi (7,030.65 km) |
| Roswell to Opmeer | 4,364.39 mi (7,023.81 km) |
| Roswell to Oss | 4,410.96 mi (7,098.75 km) |
| Roswell to Oud-Beijerland | 4,365.47 mi (7,025.54 km) |
| Roswell to Oudenbosch | 4,376.26 mi (7,042.91 km) |
