| Lone Tree to Oerlinghausen | 4,964.11 mi (7,988.96 km) |
| Lone Tree to Oestrich-Winkel | 5,033.35 mi (8,100.39 km) |
| Lone Tree to Offenburg | 5,102.14 mi (8,211.10 km) |
| Lone Tree to Oftersheim | 5,081.92 mi (8,178.56 km) |
| Lone Tree to Ohrdruf | 5,082.91 mi (8,180.15 km) |
| Lone Tree to Ohringen | 5,120.21 mi (8,240.18 km) |
| Lone Tree to Olbernhau | 5,171.96 mi (8,323.47 km) |
| Lone Tree to Olching | 5,227.83 mi (8,413.37 km) |
| Lone Tree to Oldenburg | 4,895.87 mi (7,879.14 km) |
| Lone Tree to Oldenburg in Holstein | 4,923.38 mi (7,923.41 km) |
| Lone Tree to Olfen | 4,934.55 mi (7,941.38 km) |
| Lone Tree to Olpe | 4,981.08 mi (8,016.27 km) |
| Lone Tree to Olsberg | 4,986.73 mi (8,025.37 km) |
| Lone Tree to Oranienburg | 5,067.05 mi (8,154.62 km) |
| Lone Tree to Ortenberg | 5,051.38 mi (8,129.42 km) |
