| Middle Island to Oerlinghausen | 3,751.93 mi (6,038.15 km) |
| Middle Island to Oestrich-Winkel | 3,779.23 mi (6,082.08 km) |
| Middle Island to Offenburg | 3,820.07 mi (6,147.80 km) |
| Middle Island to Oftersheim | 3,820.89 mi (6,149.13 km) |
| Middle Island to Ohrdruf | 3,865.24 mi (6,220.50 km) |
| Middle Island to Ohringen | 3,863.27 mi (6,217.34 km) |
| Middle Island to Olbernhau | 3,972.49 mi (6,393.11 km) |
| Middle Island to Olching | 3,968.01 mi (6,385.90 km) |
| Middle Island to Oldenburg | 3,703.36 mi (5,959.97 km) |
| Middle Island to Oldenburg in Holstein | 3,773.97 mi (6,073.62 km) |
| Middle Island to Olfen | 3,708.00 mi (5,967.45 km) |
| Middle Island to Olpe | 3,744.56 mi (6,026.30 km) |
| Middle Island to Olsberg | 3,761.40 mi (6,053.39 km) |
| Middle Island to Oranienburg | 3,905.75 mi (6,285.69 km) |
| Middle Island to Ortenberg | 3,811.88 mi (6,134.62 km) |
