| San Anselmo to Orbetello | 6,167.70 mi (9,925.95 km) |
| San Anselmo to Oria | 6,459.30 mi (10,395.24 km) |
| San Anselmo to Oristano | 6,230.88 mi (10,027.63 km) |
| San Anselmo to Orta Nova | 6,358.41 mi (10,232.87 km) |
| San Anselmo to Orte | 6,200.22 mi (9,978.29 km) |
| San Anselmo to Ortona | 6,262.88 mi (10,079.14 km) |
| San Anselmo to Orvieto | 6,177.59 mi (9,941.88 km) |
| San Anselmo to Orzinuovi | 5,963.79 mi (9,597.79 km) |
| San Anselmo to Osimo | 6,171.94 mi (9,932.78 km) |
| San Anselmo to Ospitaletto | 5,959.01 mi (9,590.09 km) |
| San Anselmo to Ostuni | 6,444.07 mi (10,370.72 km) |
| San Anselmo to Ottaviano | 6,352.43 mi (10,223.24 km) |
| San Anselmo to Ovada | 5,969.33 mi (9,606.71 km) |
| San Anselmo to Ozieri | 6,205.89 mi (9,987.41 km) |
| San Anselmo to Paceco | 6,461.88 mi (10,399.38 km) |
