| Iver to Orbetello | 833.97 mi (1,342.15 km) |
| Iver to Oria | 1,150.85 mi (1,852.12 km) |
| Iver to Oristano | 913.12 mi (1,469.52 km) |
| Iver to Orta Nova | 1,040.89 mi (1,675.15 km) |
| Iver to Orte | 870.00 mi (1,400.12 km) |
| Iver to Ortona | 943.37 mi (1,518.21 km) |
| Iver to Orvieto | 847.32 mi (1,363.63 km) |
| Iver to Orzinuovi | 637.40 mi (1,025.80 km) |
| Iver to Osimo | 854.69 mi (1,375.50 km) |
| Iver to Ospitaletto | 634.65 mi (1,021.38 km) |
| Iver to Ostuni | 1,137.24 mi (1,830.21 km) |
| Iver to Ottaviano | 1,024.46 mi (1,648.71 km) |
| Iver to Ovada | 635.13 mi (1,022.14 km) |
| Iver to Ozieri | 880.90 mi (1,417.67 km) |
| Iver to Paceco | 1,130.01 mi (1,818.57 km) |
