| Efringen-Kirchen to Oestrich-Winkel | 163.18 mi (262.61 km) |
| Efringen-Kirchen to Offenburg | 58.55 mi (94.23 km) |
| Efringen-Kirchen to Oftersheim | 127.34 mi (204.93 km) |
| Efringen-Kirchen to Ohrdruf | 261.59 mi (420.98 km) |
| Efringen-Kirchen to Ohringen | 138.74 mi (223.27 km) |
| Efringen-Kirchen to Olbernhau | 333.29 mi (536.37 km) |
| Efringen-Kirchen to Olching | 177.66 mi (285.92 km) |
| Efringen-Kirchen to Oldenburg | 380.27 mi (611.99 km) |
| Efringen-Kirchen to Oldenburg in Holstein | 481.09 mi (774.25 km) |
| Efringen-Kirchen to Olfen | 280.71 mi (451.76 km) |
| Efringen-Kirchen to Olpe | 232.54 mi (374.24 km) |
| Efringen-Kirchen to Olsberg | 258.55 mi (416.10 km) |
| Efringen-Kirchen to Oranienburg | 432.15 mi (695.48 km) |
| Efringen-Kirchen to Ortenberg | 198.39 mi (319.28 km) |
| Efringen-Kirchen to Oschatz | 353.79 mi (569.37 km) |
