| Boulogne-Billancourt to Orzesze | 744.91 mi (1,198.81 km) |
| Boulogne-Billancourt to Osowa | 793.45 mi (1,276.94 km) |
| Boulogne-Billancourt to Ostroda | 833.87 mi (1,341.99 km) |
| Boulogne-Billancourt to Ostroleka | 887.28 mi (1,427.95 km) |
| Boulogne-Billancourt to Ostrow Mazowiecka | 897.51 mi (1,444.41 km) |
| Boulogne-Billancourt to Ostrow Wielkopolski | 713.63 mi (1,148.47 km) |
| Boulogne-Billancourt to Ostrowiec Swietokrzyski | 862.63 mi (1,388.27 km) |
| Boulogne-Billancourt to Ostrzeszow | 716.08 mi (1,152.42 km) |
| Boulogne-Billancourt to Oswiecim | 765.78 mi (1,232.40 km) |
| Boulogne-Billancourt to Otwock | 863.95 mi (1,390.40 km) |
| Boulogne-Billancourt to Ozarow Mazowiecki | 845.36 mi (1,360.47 km) |
| Boulogne-Billancourt to Ozimek | 722.72 mi (1,163.11 km) |
| Boulogne-Billancourt to Ozorkow | 779.06 mi (1,253.77 km) |
| Boulogne-Billancourt to Pabianice | 780.04 mi (1,255.35 km) |
| Boulogne-Billancourt to Parczew | 928.51 mi (1,494.30 km) |
