| Knowsley to Opole | 900.18 mi (1,448.69 km) |
| Knowsley to Orzesze | 946.66 mi (1,523.50 km) |
| Knowsley to Osowa | 866.45 mi (1,394.41 km) |
| Knowsley to Ostroda | 932.21 mi (1,500.24 km) |
| Knowsley to Ostroleka | 1,004.61 mi (1,616.76 km) |
| Knowsley to Ostrow Mazowiecka | 1,021.98 mi (1,644.72 km) |
| Knowsley to Ostrow Wielkopolski | 873.98 mi (1,406.54 km) |
| Knowsley to Ostrowiec Swietokrzyski | 1,036.52 mi (1,668.11 km) |
| Knowsley to Ostrzeszow | 883.44 mi (1,421.76 km) |
| Knowsley to Oswiecim | 968.92 mi (1,559.33 km) |
| Knowsley to Otwock | 1,007.17 mi (1,620.89 km) |
| Knowsley to Ozarow Mazowiecki | 986.29 mi (1,587.29 km) |
| Knowsley to Ozimek | 911.51 mi (1,466.93 km) |
| Knowsley to Ozorkow | 928.40 mi (1,494.11 km) |
| Knowsley to Pabianice | 938.44 mi (1,510.27 km) |
