| Walker Mill to Opole | 4,397.11 mi (7,076.47 km) |
| Walker Mill to Orzesze | 4,446.19 mi (7,155.45 km) |
| Walker Mill to Osowa | 4,289.36 mi (6,903.06 km) |
| Walker Mill to Ostroda | 4,366.86 mi (7,027.78 km) |
| Walker Mill to Ostroleka | 4,445.89 mi (7,154.97 km) |
| Walker Mill to Ostrow Mazowiecka | 4,467.35 mi (7,189.51 km) |
| Walker Mill to Ostrow Wielkopolski | 4,358.99 mi (7,015.12 km) |
| Walker Mill to Ostrowiec Swietokrzyski | 4,517.31 mi (7,269.91 km) |
| Walker Mill to Ostrzeszow | 4,371.31 mi (7,034.94 km) |
| Walker Mill to Oswiecim | 4,468.09 mi (7,190.70 km) |
| Walker Mill to Otwock | 4,469.36 mi (7,192.74 km) |
| Walker Mill to Ozarow Mazowiecki | 4,448.87 mi (7,159.77 km) |
| Walker Mill to Ozimek | 4,407.49 mi (7,093.17 km) |
| Walker Mill to Ozorkow | 4,402.37 mi (7,084.93 km) |
| Walker Mill to Pabianice | 4,417.13 mi (7,108.69 km) |
