| Lakeland Highlands to Oerlinghausen | 4,746.05 mi (7,638.02 km) |
| Lakeland Highlands to Oestrich-Winkel | 4,762.08 mi (7,663.83 km) |
| Lakeland Highlands to Offenburg | 4,793.83 mi (7,714.93 km) |
| Lakeland Highlands to Oftersheim | 4,801.02 mi (7,726.50 km) |
| Lakeland Highlands to Ohrdruf | 4,856.24 mi (7,815.37 km) |
| Lakeland Highlands to Ohringen | 4,843.83 mi (7,795.39 km) |
| Lakeland Highlands to Olbernhau | 4,966.19 mi (7,992.31 km) |
| Lakeland Highlands to Olching | 4,945.85 mi (7,959.58 km) |
| Lakeland Highlands to Oldenburg | 4,702.62 mi (7,568.13 km) |
| Lakeland Highlands to Oldenburg in Holstein | 4,780.69 mi (7,693.78 km) |
| Lakeland Highlands to Olfen | 4,699.36 mi (7,562.89 km) |
| Lakeland Highlands to Olpe | 4,732.78 mi (7,616.68 km) |
| Lakeland Highlands to Olsberg | 4,752.18 mi (7,647.90 km) |
| Lakeland Highlands to Oranienburg | 4,908.55 mi (7,899.54 km) |
| Lakeland Highlands to Ortenberg | 4,798.16 mi (7,721.90 km) |
