| Forest Lake to Opole | 4,631.41 mi (7,453.54 km) |
| Forest Lake to Orzesze | 4,682.08 mi (7,535.09 km) |
| Forest Lake to Osowa | 4,467.24 mi (7,189.33 km) |
| Forest Lake to Ostroda | 4,545.76 mi (7,315.70 km) |
| Forest Lake to Ostroleka | 4,623.25 mi (7,440.39 km) |
| Forest Lake to Ostrow Mazowiecka | 4,646.14 mi (7,477.25 km) |
| Forest Lake to Ostrow Wielkopolski | 4,580.42 mi (7,371.48 km) |
| Forest Lake to Ostrowiec Swietokrzyski | 4,724.60 mi (7,603.51 km) |
| Forest Lake to Ostrzeszow | 4,595.22 mi (7,395.29 km) |
| Forest Lake to Oswiecim | 4,702.29 mi (7,567.61 km) |
| Forest Lake to Otwock | 4,661.64 mi (7,502.19 km) |
| Forest Lake to Ozarow Mazowiecki | 4,642.90 mi (7,472.03 km) |
| Forest Lake to Ozimek | 4,639.84 mi (7,467.10 km) |
| Forest Lake to Ozorkow | 4,609.83 mi (7,418.80 km) |
| Forest Lake to Pabianice | 4,628.30 mi (7,448.53 km) |
