| Willowick to Oerlinghausen | 4,043.28 mi (6,507.03 km) |
| Willowick to Oestrich-Winkel | 4,084.06 mi (6,572.66 km) |
| Willowick to Offenburg | 4,134.12 mi (6,653.22 km) |
| Willowick to Oftersheim | 4,128.34 mi (6,643.92 km) |
| Willowick to Ohrdruf | 4,159.62 mi (6,694.26 km) |
| Willowick to Ohringen | 4,169.88 mi (6,710.78 km) |
| Willowick to Olbernhau | 4,262.45 mi (6,859.74 km) |
| Willowick to Olching | 4,276.60 mi (6,882.52 km) |
| Willowick to Oldenburg | 3,987.94 mi (6,417.97 km) |
| Willowick to Oldenburg in Holstein | 4,045.97 mi (6,511.36 km) |
| Willowick to Olfen | 4,003.35 mi (6,442.77 km) |
| Willowick to Olpe | 4,043.48 mi (6,507.35 km) |
| Willowick to Olsberg | 4,056.99 mi (6,529.10 km) |
| Willowick to Oranienburg | 4,183.11 mi (6,732.07 km) |
| Willowick to Ortenberg | 4,112.48 mi (6,618.40 km) |
