| Tanque Verde to Orbetello | 6,099.60 mi (9,816.36 km) |
| Tanque Verde to Oria | 6,426.09 mi (10,341.79 km) |
| Tanque Verde to Oristano | 6,120.48 mi (9,849.96 km) |
| Tanque Verde to Orta Nova | 6,316.14 mi (10,164.85 km) |
| Tanque Verde to Orte | 6,141.25 mi (9,883.39 km) |
| Tanque Verde to Ortona | 6,218.60 mi (10,007.87 km) |
| Tanque Verde to Orvieto | 6,118.73 mi (9,847.15 km) |
| Tanque Verde to Orzinuovi | 5,912.34 mi (9,514.99 km) |
| Tanque Verde to Osimo | 6,130.07 mi (9,865.40 km) |
| Tanque Verde to Ospitaletto | 5,909.93 mi (9,511.12 km) |
| Tanque Verde to Ostuni | 6,412.29 mi (10,319.59 km) |
| Tanque Verde to Ottaviano | 6,296.27 mi (10,132.87 km) |
| Tanque Verde to Ovada | 5,901.87 mi (9,498.14 km) |
| Tanque Verde to Ozieri | 6,104.69 mi (9,824.55 km) |
| Tanque Verde to Paceco | 6,365.96 mi (10,245.02 km) |
