| Darmstadt to Orzesze | 448.40 mi (721.64 km) |
| Darmstadt to Osowa | 521.05 mi (838.55 km) |
| Darmstadt to Ostroda | 550.28 mi (885.59 km) |
| Darmstadt to Ostroleka | 596.99 mi (960.76 km) |
| Darmstadt to Ostrow Mazowiecka | 605.49 mi (974.44 km) |
| Darmstadt to Ostrow Wielkopolski | 418.57 mi (673.63 km) |
| Darmstadt to Ostrowiec Swietokrzyski | 565.42 mi (909.95 km) |
| Darmstadt to Ostrzeszow | 420.07 mi (676.03 km) |
| Darmstadt to Oswiecim | 469.56 mi (755.69 km) |
| Darmstadt to Otwock | 569.21 mi (916.05 km) |
| Darmstadt to Ozarow Mazowiecki | 551.21 mi (887.09 km) |
| Darmstadt to Ozimek | 425.49 mi (684.76 km) |
| Darmstadt to Ozorkow | 484.60 mi (779.90 km) |
| Darmstadt to Pabianice | 484.30 mi (779.41 km) |
| Darmstadt to Parczew | 632.07 mi (1,017.21 km) |
