| Rosaryville to Olympia (Washington) | 2,364.35 mi (3,805.05 km) |
| Rosaryville to Olympia Heights (Florida) | 924.06 mi (1,487.12 km) |
| Rosaryville to Omaha (Nebraska) | 1,029.70 mi (1,657.14 km) |
| Rosaryville to On Top of the World Designated Place (Florida) | 736.88 mi (1,185.90 km) |
| Rosaryville to Onalaska (Wisconsin) | 824.28 mi (1,326.55 km) |
| Rosaryville to Oneida (New York) | 303.90 mi (489.09 km) |
| Rosaryville to Oneonta (New York) | 271.00 mi (436.13 km) |
| Rosaryville to Ontario (California) | 2,272.29 mi (3,656.89 km) |
| Rosaryville to Ontario (Oregon) | 2,091.22 mi (3,365.49 km) |
| Rosaryville to Opa-locka (Florida) | 911.10 mi (1,466.28 km) |
| Rosaryville to Opelika (Alabama) | 638.25 mi (1,027.17 km) |
| Rosaryville to Opelousas (Louisiana) | 1,035.17 mi (1,665.95 km) |
| Rosaryville to Orange (California) | 2,289.55 mi (3,684.67 km) |
| Rosaryville to Orange (Texas) | 1,131.95 mi (1,821.70 km) |
| Rosaryville to Orange City (Florida) | 725.72 mi (1,167.94 km) |
