| Geldern to Orzesze | 549.36 mi (884.11 km) |
| Geldern to Osowa | 542.65 mi (873.31 km) |
| Geldern to Ostroda | 590.51 mi (950.34 km) |
| Geldern to Ostroleka | 651.30 mi (1,048.17 km) |
| Geldern to Ostrow Mazowiecka | 664.41 mi (1,069.26 km) |
| Geldern to Ostrow Wielkopolski | 492.60 mi (792.76 km) |
| Geldern to Ostrowiec Swietokrzyski | 652.06 mi (1,049.39 km) |
| Geldern to Ostrzeszow | 498.84 mi (802.81 km) |
| Geldern to Oswiecim | 571.54 mi (919.81 km) |
| Geldern to Otwock | 638.05 mi (1,026.84 km) |
| Geldern to Ozarow Mazowiecki | 618.07 mi (994.69 km) |
| Geldern to Ozimek | 518.24 mi (834.03 km) |
| Geldern to Ozorkow | 554.18 mi (891.87 km) |
| Geldern to Pabianice | 559.62 mi (900.62 km) |
| Geldern to Parczew | 708.49 mi (1,140.21 km) |
