| Cities | Distance |
|---|---|
| Geldern to Oria | 932.46 mi (1,500.64 km) |
| Geldern to Oristano | 809.71 mi (1,303.10 km) |
| Geldern to Orta Nova | 832.23 mi (1,339.35 km) |
| Geldern to Orte | 687.32 mi (1,106.14 km) |
| Geldern to Ortona | 738.09 mi (1,187.84 km) |
| Geldern to Orvieto | 665.52 mi (1,071.05 km) |
| Geldern to Orzinuovi | 453.74 mi (730.22 km) |
| Geldern to Osimo | 647.16 mi (1,041.50 km) |
| Geldern to Ospitaletto | 446.07 mi (717.88 km) |
| Geldern to Ostuni | 917.36 mi (1,476.35 km) |
| Geldern to Ottaviano | 832.63 mi (1,339.99 km) |
| Geldern to Ovada | 487.18 mi (784.04 km) |
| Geldern to Ozieri | 766.16 mi (1,233.02 km) |
| Geldern to Paceco | 982.88 mi (1,581.79 km) |
| Geldern to Pachino | 1,109.51 mi (1,785.58 km) |