| Biga to Opole | 849.27 mi (1,366.77 km) |
| Biga to Orzesze | 799.42 mi (1,286.55 km) |
| Biga to Osowa | 1,061.66 mi (1,708.57 km) |
| Biga to Ostroda | 990.76 mi (1,594.48 km) |
| Biga to Ostroleka | 926.28 mi (1,490.70 km) |
| Biga to Ostrow Mazowiecka | 904.38 mi (1,455.45 km) |
| Biga to Ostrow Wielkopolski | 908.16 mi (1,461.54 km) |
| Biga to Ostrowiec Swietokrzyski | 791.15 mi (1,273.23 km) |
| Biga to Ostrzeszow | 891.98 mi (1,435.50 km) |
| Biga to Oswiecim | 781.43 mi (1,257.59 km) |
| Biga to Otwock | 869.02 mi (1,398.54 km) |
| Biga to Ozarow Mazowiecki | 882.86 mi (1,420.82 km) |
| Biga to Ozimek | 842.60 mi (1,356.04 km) |
| Biga to Ozorkow | 894.95 mi (1,440.29 km) |
| Biga to Pabianice | 873.66 mi (1,406.02 km) |
