| Fountain to Opole | 5,353.19 mi (8,615.13 km) |
| Fountain to Orzesze | 5,403.79 mi (8,696.56 km) |
| Fountain to Osowa | 5,176.74 mi (8,331.15 km) |
| Fountain to Ostroda | 5,254.66 mi (8,456.56 km) |
| Fountain to Ostroleka | 5,330.87 mi (8,579.21 km) |
| Fountain to Ostrow Mazowiecka | 5,353.91 mi (8,616.29 km) |
| Fountain to Ostrow Wielkopolski | 5,299.68 mi (8,529.00 km) |
| Fountain to Ostrowiec Swietokrzyski | 5,439.02 mi (8,753.26 km) |
| Fountain to Ostrzeszow | 5,314.92 mi (8,553.54 km) |
| Fountain to Oswiecim | 5,423.43 mi (8,728.17 km) |
| Fountain to Otwock | 5,372.84 mi (8,646.75 km) |
| Fountain to Ozarow Mazowiecki | 5,354.75 mi (8,617.63 km) |
| Fountain to Ozimek | 5,361.10 mi (8,627.86 km) |
| Fountain to Ozorkow | 5,325.42 mi (8,570.43 km) |
| Fountain to Pabianice | 5,344.62 mi (8,601.34 km) |
