| Mercerville to Opole | 4,247.91 mi (6,836.35 km) |
| Mercerville to Orzesze | 4,296.93 mi (6,915.25 km) |
| Mercerville to Osowa | 4,141.52 mi (6,665.14 km) |
| Mercerville to Ostroda | 4,218.92 mi (6,789.69 km) |
| Mercerville to Ostroleka | 4,297.92 mi (6,916.84 km) |
| Mercerville to Ostrow Mazowiecka | 4,319.32 mi (6,951.28 km) |
| Mercerville to Ostrow Wielkopolski | 4,210.05 mi (6,775.42 km) |
| Mercerville to Ostrowiec Swietokrzyski | 4,368.55 mi (7,030.51 km) |
| Mercerville to Ostrzeszow | 4,222.31 mi (6,795.14 km) |
| Mercerville to Oswiecim | 4,318.85 mi (6,950.52 km) |
| Mercerville to Otwock | 4,320.98 mi (6,953.95 km) |
| Mercerville to Ozarow Mazowiecki | 4,300.47 mi (6,920.94 km) |
| Mercerville to Ozimek | 4,258.31 mi (6,853.09 km) |
| Mercerville to Ozorkow | 4,253.69 mi (6,845.65 km) |
| Mercerville to Pabianice | 4,268.36 mi (6,869.26 km) |
