| Four Square Mile to Orbetello | 5,497.90 mi (8,848.02 km) |
| Four Square Mile to Oria | 5,821.63 mi (9,369.01 km) |
| Four Square Mile to Oristano | 5,524.42 mi (8,890.70 km) |
| Four Square Mile to Orta Nova | 5,712.28 mi (9,193.02 km) |
| Four Square Mile to Orte | 5,538.66 mi (8,913.62 km) |
| Four Square Mile to Ortona | 5,614.76 mi (9,036.08 km) |
| Four Square Mile to Orvieto | 5,516.10 mi (8,877.30 km) |
| Four Square Mile to Orzinuovi | 5,308.66 mi (8,543.46 km) |
| Four Square Mile to Osimo | 5,525.90 mi (8,893.07 km) |
| Four Square Mile to Ospitaletto | 5,306.04 mi (8,539.25 km) |
| Four Square Mile to Ostuni | 5,807.70 mi (9,346.59 km) |
| Four Square Mile to Ottaviano | 5,693.67 mi (9,163.08 km) |
| Four Square Mile to Ovada | 5,299.74 mi (8,529.11 km) |
| Four Square Mile to Ozieri | 5,507.22 mi (8,863.01 km) |
| Four Square Mile to Paceco | 5,768.33 mi (9,283.23 km) |
