| Heemskerk to Oberkirch | 313.40 mi (504.37 km) |
| Heemskerk to Obernburg am Main | 267.80 mi (430.99 km) |
| Heemskerk to Obernkirchen | 188.45 mi (303.27 km) |
| Heemskerk to Oberschleissheim | 423.11 mi (680.93 km) |
| Heemskerk to Oberstdorf | 431.85 mi (694.99 km) |
| Heemskerk to Obertraubling | 409.21 mi (658.57 km) |
| Heemskerk to Obertshausen | 247.04 mi (397.57 km) |
| Heemskerk to Oberursel | 232.34 mi (373.91 km) |
| Heemskerk to Ochsenfurt | 306.72 mi (493.62 km) |
| Heemskerk to Ochsenhausen | 385.33 mi (620.12 km) |
| Heemskerk to Ochtrup | 108.62 mi (174.81 km) |
| Heemskerk to Odenthal | 146.53 mi (235.82 km) |
| Heemskerk to Oelde | 154.94 mi (249.36 km) |
| Heemskerk to Oelsnitz | 353.71 mi (569.24 km) |
| Heemskerk to Oer-Erkenschwick | 125.25 mi (201.58 km) |
