| Bertem to Oestrich-Winkel | 160.07 mi (257.61 km) |
| Bertem to Offenburg | 221.59 mi (356.61 km) |
| Bertem to Oftersheim | 203.34 mi (327.24 km) |
| Bertem to Ohrdruf | 266.79 mi (429.36 km) |
| Bertem to Ohringen | 244.85 mi (394.04 km) |
| Bertem to Olbernhau | 380.97 mi (613.12 km) |
| Bertem to Olching | 351.68 mi (565.97 km) |
| Bertem to Oldenburg | 220.26 mi (354.47 km) |
| Bertem to Oldenburg in Holstein | 354.81 mi (571.01 km) |
| Bertem to Olfen | 133.71 mi (215.18 km) |
| Bertem to Olpe | 140.53 mi (226.15 km) |
| Bertem to Olsberg | 171.26 mi (275.62 km) |
| Bertem to Oranienburg | 390.81 mi (628.95 km) |
| Bertem to Ortenberg | 197.59 mi (317.98 km) |
| Bertem to Oschatz | 369.69 mi (594.95 km) |
