| Planken to Oerlinghausen | 332.77 mi (535.54 km) |
| Planken to Oestrich-Winkel | 206.83 mi (332.87 km) |
| Planken to Offenburg | 115.63 mi (186.09 km) |
| Planken to Oftersheim | 157.29 mi (253.14 km) |
| Planken to Ohrdruf | 257.62 mi (414.60 km) |
| Planken to Ohringen | 139.35 mi (224.26 km) |
| Planken to Olbernhau | 296.03 mi (476.42 km) |
| Planken to Olching | 108.69 mi (174.92 km) |
| Planken to Oldenburg | 415.94 mi (669.39 km) |
| Planken to Oldenburg in Holstein | 495.22 mi (796.98 km) |
| Planken to Olfen | 327.74 mi (527.44 km) |
| Planken to Olpe | 275.78 mi (443.83 km) |
| Planken to Olsberg | 291.75 mi (469.52 km) |
| Planken to Oranienburg | 418.50 mi (673.51 km) |
| Planken to Ortenberg | 220.28 mi (354.50 km) |
