| Leverkusen to Obernburg am Main | 125.76 mi (202.39 km) |
| Leverkusen to Obernkirchen | 125.02 mi (201.20 km) |
| Leverkusen to Oberschleissheim | 281.04 mi (452.28 km) |
| Leverkusen to Oberstdorf | 291.14 mi (468.55 km) |
| Leverkusen to Obertraubling | 270.84 mi (435.88 km) |
| Leverkusen to Obertshausen | 105.15 mi (169.22 km) |
| Leverkusen to Oberursel | 90.38 mi (145.45 km) |
| Leverkusen to Ochsenfurt | 166.17 mi (267.43 km) |
| Leverkusen to Ochsenhausen | 243.92 mi (392.55 km) |
| Leverkusen to Ochtrup | 81.48 mi (131.13 km) |
| Leverkusen to Odenthal | 5.80 mi (9.33 km) |
| Leverkusen to Oelde | 74.70 mi (120.22 km) |
| Leverkusen to Oelsnitz | 230.63 mi (371.17 km) |
| Leverkusen to Oer-Erkenschwick | 43.63 mi (70.21 km) |
| Leverkusen to Oerlinghausen | 96.96 mi (156.04 km) |
