| Gummersbach to Orzesze | 493.83 mi (794.74 km) |
| Gummersbach to Osowa | 512.22 mi (824.33 km) |
| Gummersbach to Ostroda | 553.77 mi (891.20 km) |
| Gummersbach to Ostroleka | 610.16 mi (981.95 km) |
| Gummersbach to Ostrow Mazowiecka | 621.81 mi (1,000.71 km) |
| Gummersbach to Ostrow Wielkopolski | 444.06 mi (714.65 km) |
| Gummersbach to Ostrowiec Swietokrzyski | 600.87 mi (967.01 km) |
| Gummersbach to Ostrzeszow | 448.97 mi (722.55 km) |
| Gummersbach to Oswiecim | 515.86 mi (830.20 km) |
| Gummersbach to Otwock | 592.13 mi (952.94 km) |
| Gummersbach to Ozarow Mazowiecki | 572.66 mi (921.60 km) |
| Gummersbach to Ozimek | 464.65 mi (747.78 km) |
| Gummersbach to Ozorkow | 507.49 mi (816.73 km) |
| Gummersbach to Pabianice | 511.23 mi (822.74 km) |
| Gummersbach to Parczew | 660.57 mi (1,063.08 km) |
