| Carthage to Orangevale (California) | 1,464.71 mi (2,357.23 km) |
| Carthage to Orchards (Washington) | 1,565.83 mi (2,519.96 km) |
| Carthage to Orcutt (California) | 1,462.58 mi (2,353.80 km) |
| Carthage to Oregon (Ohio) | 658.70 mi (1,060.08 km) |
| Carthage to Oregon (Wisconsin) | 476.57 mi (766.97 km) |
| Carthage to Oregon City (Oregon) | 1,563.91 mi (2,516.87 km) |
| Carthage to Orem (Utah) | 959.90 mi (1,544.80 km) |
| Carthage to Orinda (California) | 1,521.80 mi (2,449.10 km) |
| Carthage to Orland Park (Illinois) | 462.24 mi (743.90 km) |
| Carthage to Orlando (Florida) | 961.52 mi (1,547.42 km) |
| Carthage to Ormond Beach (Florida) | 935.62 mi (1,505.73 km) |
| Carthage to Oro Valley (Arizona) | 998.31 mi (1,606.62 km) |
| Carthage to Oroville (California) | 1,479.78 mi (2,381.48 km) |
| Carthage to Oshkosh (Wisconsin) | 562.54 mi (905.32 km) |
| Carthage to Oskaloosa (Iowa) | 299.99 mi (482.79 km) |
