| Bad Krozingen to Oestrich-Winkel | 144.58 mi (232.69 km) |
| Bad Krozingen to Offenburg | 39.49 mi (63.56 km) |
| Bad Krozingen to Oftersheim | 108.27 mi (174.24 km) |
| Bad Krozingen to Ohrdruf | 243.02 mi (391.10 km) |
| Bad Krozingen to Ohringen | 120.98 mi (194.70 km) |
| Bad Krozingen to Olbernhau | 316.94 mi (510.07 km) |
| Bad Krozingen to Olching | 168.15 mi (270.61 km) |
| Bad Krozingen to Oldenburg | 361.87 mi (582.37 km) |
| Bad Krozingen to Oldenburg in Holstein | 462.03 mi (743.57 km) |
| Bad Krozingen to Olfen | 262.93 mi (423.15 km) |
| Bad Krozingen to Olpe | 214.27 mi (344.84 km) |
| Bad Krozingen to Olsberg | 239.79 mi (385.90 km) |
| Bad Krozingen to Oranienburg | 413.68 mi (665.76 km) |
| Bad Krozingen to Ortenberg | 179.31 mi (288.57 km) |
| Bad Krozingen to Oschatz | 336.38 mi (541.35 km) |
