| Waterlooville to Orbetello | 820.85 mi (1,321.04 km) |
| Waterlooville to Oria | 1,145.80 mi (1,843.98 km) |
| Waterlooville to Oristano | 888.76 mi (1,430.32 km) |
| Waterlooville to Orta Nova | 1,034.31 mi (1,664.57 km) |
| Waterlooville to Orte | 859.57 mi (1,383.34 km) |
| Waterlooville to Ortona | 936.80 mi (1,507.63 km) |
| Waterlooville to Orvieto | 836.96 mi (1,346.96 km) |
| Waterlooville to Orzinuovi | 630.49 mi (1,014.68 km) |
| Waterlooville to Osimo | 849.39 mi (1,366.97 km) |
| Waterlooville to Ospitaletto | 628.72 mi (1,011.83 km) |
| Waterlooville to Ostuni | 1,132.59 mi (1,822.73 km) |
| Waterlooville to Ottaviano | 1,014.51 mi (1,632.70 km) |
| Waterlooville to Ovada | 621.89 mi (1,000.83 km) |
| Waterlooville to Ozieri | 858.60 mi (1,381.78 km) |
| Waterlooville to Paceco | 1,111.09 mi (1,788.13 km) |
