| Tilehurst to Opole | 823.41 mi (1,325.14 km) |
| Tilehurst to Orzesze | 866.20 mi (1,394.01 km) |
| Tilehurst to Osowa | 834.91 mi (1,343.66 km) |
| Tilehurst to Ostroda | 892.09 mi (1,435.68 km) |
| Tilehurst to Ostroleka | 958.41 mi (1,542.41 km) |
| Tilehurst to Ostrow Mazowiecka | 973.26 mi (1,566.31 km) |
| Tilehurst to Ostrow Wielkopolski | 807.97 mi (1,300.30 km) |
| Tilehurst to Ostrowiec Swietokrzyski | 968.51 mi (1,558.66 km) |
| Tilehurst to Ostrzeszow | 814.93 mi (1,311.51 km) |
| Tilehurst to Oswiecim | 888.33 mi (1,429.64 km) |
| Tilehurst to Otwock | 950.74 mi (1,530.06 km) |
| Tilehurst to Ozarow Mazowiecki | 930.36 mi (1,497.28 km) |
| Tilehurst to Ozimek | 835.34 mi (1,344.35 km) |
| Tilehurst to Ozorkow | 867.96 mi (1,396.85 km) |
| Tilehurst to Pabianice | 874.66 mi (1,407.63 km) |
