| Hlohovec to Oerlinghausen | 471.60 mi (758.97 km) |
| Hlohovec to Oestrich-Winkel | 455.12 mi (732.45 km) |
| Hlohovec to Offenburg | 452.01 mi (727.44 km) |
| Hlohovec to Oftersheim | 423.40 mi (681.39 km) |
| Hlohovec to Ohrdruf | 356.87 mi (574.32 km) |
| Hlohovec to Ohringen | 381.26 mi (613.58 km) |
| Hlohovec to Olbernhau | 252.83 mi (406.90 km) |
| Hlohovec to Olching | 298.39 mi (480.22 km) |
| Hlohovec to Oldenburg | 529.70 mi (852.48 km) |
| Hlohovec to Oldenburg in Holstein | 502.90 mi (809.34 km) |
| Hlohovec to Olfen | 514.11 mi (827.37 km) |
| Hlohovec to Olpe | 479.27 mi (771.32 km) |
| Hlohovec to Olsberg | 460.76 mi (741.52 km) |
| Hlohovec to Oranienburg | 359.36 mi (578.33 km) |
| Hlohovec to Ortenberg | 414.91 mi (667.74 km) |
