| Rosaryville to Odenton (Maryland) | 21.85 mi (35.17 km) |
| Rosaryville to Odessa (Texas) | 1,509.31 mi (2,429.00 km) |
| Rosaryville to Ogden (Utah) | 1,855.13 mi (2,985.54 km) |
| Rosaryville to Oildale (California) | 2,316.67 mi (3,728.31 km) |
| Rosaryville to Ojus (Florida) | 906.09 mi (1,458.21 km) |
| Rosaryville to Okemos (Michigan) | 481.17 mi (774.36 km) |
| Rosaryville to Oklahoma City (Oklahoma) | 1,159.68 mi (1,866.32 km) |
| Rosaryville to Okmulgee (Oklahoma) | 1,075.84 mi (1,731.39 km) |
| Rosaryville to Olathe (Kansas) | 967.01 mi (1,556.25 km) |
| Rosaryville to Old Jamestown (Missouri) | 724.01 mi (1,165.18 km) |
| Rosaryville to Oldsmar (Florida) | 813.05 mi (1,308.47 km) |
| Rosaryville to Olean (New York) | 244.08 mi (392.81 km) |
| Rosaryville to Olive Branch (Mississippi) | 765.43 mi (1,231.84 km) |
| Rosaryville to Olivehurst (California) | 2,379.55 mi (3,829.52 km) |
| Rosaryville to Olney (Maryland) | 29.32 mi (47.19 km) |
