| Barberton to Opole | 4,466.23 mi (7,187.71 km) |
| Barberton to Orzesze | 4,516.15 mi (7,268.05 km) |
| Barberton to Osowa | 4,339.78 mi (6,984.21 km) |
| Barberton to Ostroda | 4,418.16 mi (7,110.35 km) |
| Barberton to Ostroleka | 4,497.26 mi (7,237.65 km) |
| Barberton to Ostrow Mazowiecka | 4,519.33 mi (7,273.16 km) |
| Barberton to Ostrow Wielkopolski | 4,423.76 mi (7,119.35 km) |
| Barberton to Ostrowiec Swietokrzyski | 4,578.67 mi (7,368.66 km) |
| Barberton to Ostrzeszow | 4,436.95 mi (7,140.57 km) |
| Barberton to Oswiecim | 4,537.66 mi (7,302.66 km) |
| Barberton to Otwock | 4,525.63 mi (7,283.30 km) |
| Barberton to Ozarow Mazowiecki | 4,505.56 mi (7,250.99 km) |
| Barberton to Ozimek | 4,476.06 mi (7,203.52 km) |
| Barberton to Ozorkow | 4,462.99 mi (7,182.50 km) |
| Barberton to Pabianice | 4,479.04 mi (7,208.31 km) |
