| Modra to Opole | 163.75 mi (263.52 km) |
| Modra to Orzesze | 141.45 mi (227.64 km) |
| Modra to Osowa | 424.11 mi (682.54 km) |
| Modra to Ostroda | 388.42 mi (625.10 km) |
| Modra to Ostroleka | 376.34 mi (605.67 km) |
| Modra to Ostrow Mazowiecka | 368.49 mi (593.03 km) |
| Modra to Ostrow Wielkopolski | 230.34 mi (370.69 km) |
| Modra to Ostrowiec Swietokrzyski | 256.50 mi (412.80 km) |
| Modra to Ostrzeszow | 214.96 mi (345.94 km) |
| Modra to Oswiecim | 146.14 mi (235.19 km) |
| Modra to Otwock | 314.54 mi (506.20 km) |
| Modra to Ozarow Mazowiecki | 309.46 mi (498.03 km) |
| Modra to Ozimek | 166.78 mi (268.41 km) |
| Modra to Ozorkow | 265.91 mi (427.93 km) |
| Modra to Pabianice | 247.07 mi (397.62 km) |
