| Gravelines to Ottendorf-Okrilla | 507.41 mi (816.59 km) |
| Gravelines to Ottersberg | 332.06 mi (534.39 km) |
| Gravelines to Ottobrunn | 472.52 mi (760.45 km) |
| Gravelines to Ottweiler | 249.41 mi (401.39 km) |
| Gravelines to Overath | 225.03 mi (362.15 km) |
| Gravelines to Oyten | 325.95 mi (524.57 km) |
| Gravelines to Paderborn | 290.28 mi (467.15 km) |
| Gravelines to Papenburg | 266.17 mi (428.36 km) |
| Gravelines to Parchim | 443.53 mi (713.79 km) |
| Gravelines to Pasewalk | 530.70 mi (854.08 km) |
| Gravelines to Passau | 531.91 mi (856.03 km) |
| Gravelines to Pattensen | 339.21 mi (545.91 km) |
| Gravelines to Pegnitz | 423.31 mi (681.25 km) |
| Gravelines to Peine | 359.28 mi (578.21 km) |
| Gravelines to Peissenberg | 457.83 mi (736.81 km) |
