| Fort Washington to Opole | 4,408.68 mi (7,095.08 km) |
| Fort Washington to Orzesze | 4,457.75 mi (7,174.06 km) |
| Fort Washington to Osowa | 4,301.05 mi (6,921.88 km) |
| Fort Washington to Ostroda | 4,378.55 mi (7,046.59 km) |
| Fort Washington to Ostroleka | 4,457.58 mi (7,173.77 km) |
| Fort Washington to Ostrow Mazowiecka | 4,479.03 mi (7,208.31 km) |
| Fort Washington to Ostrow Wielkopolski | 4,370.59 mi (7,033.79 km) |
| Fort Washington to Ostrowiec Swietokrzyski | 4,528.93 mi (7,288.61 km) |
| Fort Washington to Ostrzeszow | 4,382.90 mi (7,053.60 km) |
| Fort Washington to Oswiecim | 4,479.65 mi (7,209.30 km) |
| Fort Washington to Otwock | 4,481.02 mi (7,211.50 km) |
| Fort Washington to Ozarow Mazowiecki | 4,460.53 mi (7,178.53 km) |
| Fort Washington to Ozimek | 4,419.06 mi (7,111.79 km) |
| Fort Washington to Ozorkow | 4,414.00 mi (7,103.65 km) |
| Fort Washington to Pabianice | 4,428.75 mi (7,127.39 km) |
