| Roseville to Orbetello | 6,085.34 mi (9,793.41 km) |
| Roseville to Oria | 6,378.51 mi (10,265.21 km) |
| Roseville to Oristano | 6,147.15 mi (9,892.88 km) |
| Roseville to Orta Nova | 6,277.17 mi (10,102.13 km) |
| Roseville to Orte | 6,118.22 mi (9,846.32 km) |
| Roseville to Ortona | 6,181.50 mi (9,948.16 km) |
| Roseville to Orvieto | 6,095.58 mi (9,809.90 km) |
| Roseville to Orzinuovi | 5,881.91 mi (9,466.02 km) |
| Roseville to Osimo | 6,090.58 mi (9,801.85 km) |
| Roseville to Ospitaletto | 5,877.21 mi (9,458.46 km) |
| Roseville to Ostuni | 6,363.32 mi (10,240.78 km) |
| Roseville to Ottaviano | 6,270.64 mi (10,091.62 km) |
| Roseville to Ovada | 5,886.86 mi (9,473.99 km) |
| Roseville to Ozieri | 6,122.43 mi (9,853.10 km) |
| Roseville to Paceco | 6,378.74 mi (10,265.59 km) |
