| Bollnas to Oerlinghausen | 710.40 mi (1,143.28 km) |
| Bollnas to Oestrich-Winkel | 847.95 mi (1,364.64 km) |
| Bollnas to Offenburg | 949.52 mi (1,528.10 km) |
| Bollnas to Oftersheim | 881.11 mi (1,418.00 km) |
| Bollnas to Ohrdruf | 758.23 mi (1,220.25 km) |
| Bollnas to Ohringen | 880.96 mi (1,417.77 km) |
| Bollnas to Olbernhau | 747.22 mi (1,202.53 km) |
| Bollnas to Olching | 930.02 mi (1,496.73 km) |
| Bollnas to Oldenburg | 642.97 mi (1,034.77 km) |
| Bollnas to Oldenburg in Holstein | 527.07 mi (848.23 km) |
| Bollnas to Olfen | 747.25 mi (1,202.58 km) |
| Bollnas to Olpe | 784.56 mi (1,262.63 km) |
| Bollnas to Olsberg | 753.02 mi (1,211.87 km) |
| Bollnas to Oranienburg | 605.33 mi (974.18 km) |
| Bollnas to Ortenberg | 809.88 mi (1,303.38 km) |
