| Cities | Distance |
|---|---|
| Gladbeck to Oria | 917.94 mi (1,477.28 km) |
| Gladbeck to Oristano | 809.44 mi (1,302.66 km) |
| Gladbeck to Orta Nova | 819.33 mi (1,318.59 km) |
| Gladbeck to Orte | 678.55 mi (1,092.01 km) |
| Gladbeck to Ortona | 726.04 mi (1,168.45 km) |
| Gladbeck to Orvieto | 657.01 mi (1,057.35 km) |
| Gladbeck to Orzinuovi | 447.12 mi (719.56 km) |
| Gladbeck to Osimo | 635.31 mi (1,022.43 km) |
| Gladbeck to Ospitaletto | 438.86 mi (706.28 km) |
| Gladbeck to Ostuni | 902.69 mi (1,452.74 km) |
| Gladbeck to Ottaviano | 821.91 mi (1,322.74 km) |
| Gladbeck to Ovada | 484.84 mi (780.28 km) |
| Gladbeck to Ozieri | 764.94 mi (1,231.05 km) |
| Gladbeck to Paceco | 976.93 mi (1,572.22 km) |
| Gladbeck to Pachino | 1,100.79 mi (1,771.56 km) |