| Stevenson Ranch to Orbetello | 6,252.81 mi (10,062.93 km) |
| Stevenson Ranch to Oria | 6,560.27 mi (10,557.73 km) |
| Stevenson Ranch to Oristano | 6,298.39 mi (10,136.28 km) |
| Stevenson Ranch to Orta Nova | 6,455.17 mi (10,388.59 km) |
| Stevenson Ranch to Orte | 6,289.30 mi (10,121.65 km) |
| Stevenson Ranch to Ortona | 6,358.36 mi (10,232.80 km) |
| Stevenson Ranch to Orvieto | 6,266.62 mi (10,085.14 km) |
| Stevenson Ranch to Orzinuovi | 6,054.90 mi (9,744.42 km) |
| Stevenson Ranch to Osimo | 6,268.00 mi (10,087.37 km) |
| Stevenson Ranch to Ospitaletto | 6,051.08 mi (9,738.28 km) |
| Stevenson Ranch to Ostuni | 6,545.56 mi (10,534.06 km) |
| Stevenson Ranch to Ottaviano | 6,443.39 mi (10,369.63 km) |
| Stevenson Ranch to Ovada | 6,053.79 mi (9,742.63 km) |
| Stevenson Ranch to Ozieri | 6,277.21 mi (10,102.19 km) |
| Stevenson Ranch to Paceco | 6,536.62 mi (10,519.68 km) |
