| Barberton to Orbetello | 4,522.37 mi (7,278.05 km) |
| Barberton to Oria | 4,870.05 mi (7,837.59 km) |
| Barberton to Oristano | 4,506.91 mi (7,253.17 km) |
| Barberton to Orta Nova | 4,755.42 mi (7,653.11 km) |
| Barberton to Orte | 4,570.96 mi (7,356.26 km) |
| Barberton to Ortona | 4,659.38 mi (7,498.55 km) |
| Barberton to Orvieto | 4,549.31 mi (7,321.40 km) |
| Barberton to Orzinuovi | 4,357.24 mi (7,012.30 km) |
| Barberton to Osimo | 4,576.33 mi (7,364.89 km) |
| Barberton to Ospitaletto | 4,357.26 mi (7,012.33 km) |
| Barberton to Ostuni | 4,858.11 mi (7,818.37 km) |
| Barberton to Ottaviano | 4,723.41 mi (7,601.59 km) |
| Barberton to Ovada | 4,331.85 mi (6,971.43 km) |
| Barberton to Ozieri | 4,498.89 mi (7,240.27 km) |
| Barberton to Paceco | 4,757.31 mi (7,656.14 km) |
