| Rock Hill to Orangeburg (South Carolina) | 100.50 mi (161.73 km) |
| Rock Hill to Orangevale (California) | 2,220.67 mi (3,573.82 km) |
| Rock Hill to Orchards (Washington) | 2,280.16 mi (3,669.56 km) |
| Rock Hill to Orcutt (California) | 2,217.59 mi (3,568.87 km) |
| Rock Hill to Oregon (Ohio) | 481.65 mi (775.15 km) |
| Rock Hill to Oregon (Wisconsin) | 710.85 mi (1,144.01 km) |
| Rock Hill to Oregon City (Oregon) | 2,281.54 mi (3,671.78 km) |
| Rock Hill to Orem (Utah) | 1,710.00 mi (2,751.98 km) |
| Rock Hill to Orinda (California) | 2,278.92 mi (3,667.57 km) |
| Rock Hill to Orland Park (Illinois) | 590.92 mi (950.99 km) |
| Rock Hill to Orlando (Florida) | 447.01 mi (719.39 km) |
| Rock Hill to Ormond Beach (Florida) | 389.92 mi (627.52 km) |
| Rock Hill to Oro Valley (Arizona) | 1,724.48 mi (2,775.28 km) |
| Rock Hill to Oroville (California) | 2,233.62 mi (3,594.66 km) |
| Rock Hill to Oshkosh (Wisconsin) | 744.42 mi (1,198.02 km) |
