| Cities | Distance |
|---|---|
| Grenchen to Orbetello | 377.71 mi (607.86 km) |
| Grenchen to Oria | 687.36 mi (1,106.20 km) |
| Grenchen to Oristano | 506.86 mi (815.71 km) |
| Grenchen to Orta Nova | 576.63 mi (927.99 km) |
| Grenchen to Orte | 407.99 mi (656.60 km) |
| Grenchen to Ortona | 479.09 mi (771.02 km) |
| Grenchen to Orvieto | 385.34 mi (620.14 km) |
| Grenchen to Orzinuovi | 173.11 mi (278.60 km) |
| Grenchen to Osimo | 390.95 mi (629.18 km) |
| Grenchen to Ospitaletto | 170.43 mi (274.27 km) |
| Grenchen to Ostuni | 674.07 mi (1,084.81 km) |
| Grenchen to Ottaviano | 561.38 mi (903.45 km) |
| Grenchen to Ovada | 186.24 mi (299.72 km) |
| Grenchen to Ozieri | 463.34 mi (745.68 km) |
| Grenchen to Paceco | 687.67 mi (1,106.70 km) |