| Trentham to Opole | 871.04 mi (1,401.81 km) |
| Trentham to Orzesze | 916.79 mi (1,475.43 km) |
| Trentham to Osowa | 848.07 mi (1,364.83 km) |
| Trentham to Ostroda | 911.87 mi (1,467.51 km) |
| Trentham to Ostroleka | 982.94 mi (1,581.89 km) |
| Trentham to Ostrow Mazowiecka | 999.74 mi (1,608.92 km) |
| Trentham to Ostrow Wielkopolski | 847.25 mi (1,363.52 km) |
| Trentham to Ostrowiec Swietokrzyski | 1,009.68 mi (1,624.92 km) |
| Trentham to Ostrzeszow | 856.16 mi (1,377.85 km) |
| Trentham to Oswiecim | 939.07 mi (1,511.29 km) |
| Trentham to Otwock | 983.02 mi (1,582.03 km) |
| Trentham to Ozarow Mazowiecki | 962.22 mi (1,548.55 km) |
| Trentham to Ozimek | 882.54 mi (1,420.31 km) |
| Trentham to Ozorkow | 903.11 mi (1,453.42 km) |
| Trentham to Pabianice | 912.39 mi (1,468.35 km) |
