| Southwater to Oerlinghausen | 393.14 mi (632.70 km) |
| Southwater to Oestrich-Winkel | 373.53 mi (601.14 km) |
| Southwater to Offenburg | 409.65 mi (659.27 km) |
| Southwater to Oftersheim | 411.17 mi (661.72 km) |
| Southwater to Ohrdruf | 482.52 mi (776.53 km) |
| Southwater to Ohringen | 453.98 mi (730.61 km) |
| Southwater to Olbernhau | 596.72 mi (960.33 km) |
| Southwater to Olching | 556.93 mi (896.29 km) |
| Southwater to Oldenburg | 391.80 mi (630.54 km) |
| Southwater to Oldenburg in Holstein | 521.65 mi (839.52 km) |
| Southwater to Olfen | 336.93 mi (542.24 km) |
| Southwater to Olpe | 355.60 mi (572.28 km) |
| Southwater to Olsberg | 383.08 mi (616.51 km) |
| Southwater to Oranienburg | 590.76 mi (950.73 km) |
| Southwater to Ortenberg | 414.09 mi (666.42 km) |
