| Hlohovec to Oberkirch | 444.91 mi (716.01 km) |
| Hlohovec to Obernburg am Main | 403.19 mi (648.87 km) |
| Hlohovec to Obernkirchen | 465.10 mi (748.50 km) |
| Hlohovec to Oberschleissheim | 286.62 mi (461.27 km) |
| Hlohovec to Oberstdorf | 355.34 mi (571.86 km) |
| Hlohovec to Obertraubling | 259.59 mi (417.77 km) |
| Hlohovec to Obertshausen | 419.71 mi (675.46 km) |
| Hlohovec to Oberursel | 432.84 mi (696.59 km) |
| Hlohovec to Ochsenfurt | 360.16 mi (579.63 km) |
| Hlohovec to Ochsenhausen | 362.08 mi (582.72 km) |
| Hlohovec to Ochtrup | 535.12 mi (861.20 km) |
| Hlohovec to Odenthal | 509.36 mi (819.73 km) |
| Hlohovec to Oelde | 487.27 mi (784.19 km) |
| Hlohovec to Oelsnitz | 287.90 mi (463.33 km) |
| Hlohovec to Oer-Erkenschwick | 517.48 mi (832.81 km) |
