| Gemerek to Oerlinghausen | 1,577.75 mi (2,539.15 km) |
| Gemerek to Oestrich-Winkel | 1,557.20 mi (2,506.07 km) |
| Gemerek to Offenburg | 1,530.74 mi (2,463.49 km) |
| Gemerek to Oftersheim | 1,519.17 mi (2,444.87 km) |
| Gemerek to Ohrdruf | 1,464.81 mi (2,357.39 km) |
| Gemerek to Ohringen | 1,476.29 mi (2,375.85 km) |
| Gemerek to Olbernhau | 1,357.21 mi (2,184.22 km) |
| Gemerek to Olching | 1,376.27 mi (2,214.90 km) |
| Gemerek to Oldenburg | 1,628.37 mi (2,620.61 km) |
| Gemerek to Oldenburg in Holstein | 1,569.92 mi (2,526.54 km) |
| Gemerek to Olfen | 1,622.04 mi (2,610.43 km) |
| Gemerek to Olpe | 1,586.94 mi (2,553.94 km) |
| Gemerek to Olsberg | 1,568.80 mi (2,524.73 km) |
| Gemerek to Oranienburg | 1,431.65 mi (2,304.02 km) |
| Gemerek to Ortenberg | 1,521.04 mi (2,447.88 km) |
