| Rolla to Orangeburg (South Carolina) | 683.54 mi (1,100.05 km) |
| Rolla to Orangevale (California) | 1,590.97 mi (2,560.42 km) |
| Rolla to Orchards (Washington) | 1,660.29 mi (2,671.97 km) |
| Rolla to Orcutt (California) | 1,601.51 mi (2,577.39 km) |
| Rolla to Oregon (Ohio) | 510.59 mi (821.71 km) |
| Rolla to Oregon (Wisconsin) | 365.91 mi (588.87 km) |
| Rolla to Oregon City (Oregon) | 1,660.17 mi (2,671.78 km) |
| Rolla to Orem (Utah) | 1,078.70 mi (1,736.00 km) |
| Rolla to Orinda (California) | 1,650.65 mi (2,656.47 km) |
| Rolla to Orland Park (Illinois) | 326.83 mi (525.98 km) |
| Rolla to Orlando (Florida) | 888.19 mi (1,429.41 km) |
| Rolla to Ormond Beach (Florida) | 855.04 mi (1,376.05 km) |
| Rolla to Oro Valley (Arizona) | 1,147.74 mi (1,847.11 km) |
| Rolla to Oroville (California) | 1,602.78 mi (2,579.43 km) |
| Rolla to Oshkosh (Wisconsin) | 451.70 mi (726.95 km) |
