| Gerstetten to Octeville | 531.38 mi (855.17 km) |
| Gerstetten to Oignies | 339.71 mi (546.71 km) |
| Gerstetten to Oissel | 407.69 mi (656.12 km) |
| Gerstetten to Olivet | 377.11 mi (606.90 km) |
| Gerstetten to Ollioules | 428.59 mi (689.75 km) |
| Gerstetten to Olonne-sur-Mer | 567.61 mi (913.48 km) |
| Gerstetten to Oloron-Sainte-Marie | 632.85 mi (1,018.47 km) |
| Gerstetten to Onet Village | 459.31 mi (739.19 km) |
| Gerstetten to Onnaing | 312.78 mi (503.37 km) |
| Gerstetten to Orange | 396.90 mi (638.74 km) |
| Gerstetten to Orchies | 329.47 mi (530.23 km) |
| Gerstetten to Orleans | 376.23 mi (605.48 km) |
| Gerstetten to Orly | 347.91 mi (559.91 km) |
| Gerstetten to Ormesson-sur-Marne | 341.23 mi (549.15 km) |
| Gerstetten to Orsay | 357.37 mi (575.12 km) |
