| Dalmine to Oerlinghausen | 438.49 mi (705.69 km) |
| Dalmine to Oestrich-Winkel | 309.56 mi (498.20 km) |
| Dalmine to Offenburg | 209.82 mi (337.67 km) |
| Dalmine to Oftersheim | 261.39 mi (420.67 km) |
| Dalmine to Ohrdruf | 361.54 mi (581.84 km) |
| Dalmine to Ohringen | 245.33 mi (394.81 km) |
| Dalmine to Olbernhau | 386.86 mi (622.59 km) |
| Dalmine to Olching | 193.91 mi (312.06 km) |
| Dalmine to Oldenburg | 521.49 mi (839.26 km) |
| Dalmine to Oldenburg in Holstein | 600.34 mi (966.16 km) |
| Dalmine to Olfen | 431.14 mi (693.85 km) |
| Dalmine to Olpe | 379.55 mi (610.82 km) |
| Dalmine to Olsberg | 397.12 mi (639.11 km) |
| Dalmine to Oranienburg | 517.42 mi (832.71 km) |
| Dalmine to Ortenberg | 326.11 mi (524.82 km) |
