| Rocklin to Orbetello | 6,081.11 mi (9,786.60 km) |
| Rocklin to Oria | 6,374.38 mi (10,258.57 km) |
| Rocklin to Oristano | 6,142.83 mi (9,885.93 km) |
| Rocklin to Orta Nova | 6,273.01 mi (10,095.44 km) |
| Rocklin to Orte | 6,114.01 mi (9,839.55 km) |
| Rocklin to Ortona | 6,177.33 mi (9,941.45 km) |
| Rocklin to Orvieto | 6,091.38 mi (9,803.13 km) |
| Rocklin to Orzinuovi | 5,877.71 mi (9,459.26 km) |
| Rocklin to Osimo | 6,086.42 mi (9,795.15 km) |
| Rocklin to Ospitaletto | 5,873.02 mi (9,451.72 km) |
| Rocklin to Ostuni | 6,359.19 mi (10,234.13 km) |
| Rocklin to Ottaviano | 6,266.45 mi (10,084.87 km) |
| Rocklin to Ovada | 5,882.63 mi (9,467.18 km) |
| Rocklin to Ozieri | 6,118.13 mi (9,846.18 km) |
| Rocklin to Paceco | 6,374.46 mi (10,258.71 km) |
