| Rancho Santa Margarita to Nuth | 5,661.02 mi (9,110.53 km) |
| Rancho Santa Margarita to Oegstgeest | 5,556.14 mi (8,941.75 km) |
| Rancho Santa Margarita to Oirschot | 5,614.63 mi (9,035.87 km) |
| Rancho Santa Margarita to Oisterwijk | 5,607.52 mi (9,024.43 km) |
| Rancho Santa Margarita to Oldebroek | 5,586.11 mi (8,989.97 km) |
| Rancho Santa Margarita to Oldenzaal | 5,623.14 mi (9,049.56 km) |
| Rancho Santa Margarita to Ommen | 5,598.06 mi (9,009.21 km) |
| Rancho Santa Margarita to Oosterend | 5,563.79 mi (8,954.06 km) |
| Rancho Santa Margarita to Oosterhout | 5,594.16 mi (9,002.93 km) |
| Rancho Santa Margarita to Oosterwolde | 5,571.01 mi (8,965.68 km) |
| Rancho Santa Margarita to Oostzaan | 5,556.61 mi (8,942.50 km) |
| Rancho Santa Margarita to Opmeer | 5,545.67 mi (8,924.90 km) |
| Rancho Santa Margarita to Oss | 5,608.15 mi (9,025.45 km) |
| Rancho Santa Margarita to Oud-Beijerland | 5,571.81 mi (8,966.96 km) |
| Rancho Santa Margarita to Oudenbosch | 5,586.59 mi (8,990.75 km) |
