| Balchik to Orzesze | 642.48 mi (1,033.98 km) |
| Balchik to Osowa | 876.35 mi (1,410.35 km) |
| Balchik to Ostroda | 801.42 mi (1,289.76 km) |
| Balchik to Ostroleka | 731.16 mi (1,176.69 km) |
| Balchik to Ostrow Mazowiecka | 708.46 mi (1,140.16 km) |
| Balchik to Ostrow Wielkopolski | 743.94 mi (1,197.25 km) |
| Balchik to Ostrowiec Swietokrzyski | 607.55 mi (977.75 km) |
| Balchik to Ostrzeszow | 728.95 mi (1,173.13 km) |
| Balchik to Oswiecim | 621.97 mi (1,000.96 km) |
| Balchik to Otwock | 679.72 mi (1,093.91 km) |
| Balchik to Ozarow Mazowiecki | 695.93 mi (1,119.99 km) |
| Balchik to Ozimek | 684.41 mi (1,101.45 km) |
| Balchik to Ozorkow | 719.01 mi (1,157.13 km) |
| Balchik to Pabianice | 699.26 mi (1,125.36 km) |
| Balchik to Parczew | 618.07 mi (994.69 km) |
