| Rancho Cordova to Orbetello | 6,094.77 mi (9,808.59 km) |
| Rancho Cordova to Oria | 6,388.46 mi (10,281.24 km) |
| Rancho Cordova to Oristano | 6,156.00 mi (9,907.13 km) |
| Rancho Cordova to Orta Nova | 6,286.99 mi (10,117.93 km) |
| Rancho Cordova to Orte | 6,127.78 mi (9,861.71 km) |
| Rancho Cordova to Ortona | 6,191.27 mi (9,963.88 km) |
| Rancho Cordova to Orvieto | 6,105.14 mi (9,825.28 km) |
| Rancho Cordova to Orzinuovi | 5,891.52 mi (9,481.48 km) |
| Rancho Cordova to Osimo | 6,100.37 mi (9,817.59 km) |
| Rancho Cordova to Ospitaletto | 5,886.85 mi (9,473.97 km) |
| Rancho Cordova to Ostuni | 6,373.29 mi (10,256.83 km) |
| Rancho Cordova to Ottaviano | 6,280.27 mi (10,107.12 km) |
| Rancho Cordova to Ovada | 5,896.26 mi (9,489.11 km) |
| Rancho Cordova to Ozieri | 6,131.41 mi (9,867.56 km) |
| Rancho Cordova to Paceco | 6,387.86 mi (10,280.27 km) |
