| Takoma Park to Orangeburg (South Carolina) | 435.97 mi (701.63 km) |
| Takoma Park to Orangevale (California) | 2,355.92 mi (3,791.49 km) |
| Takoma Park to Orchards (Washington) | 2,338.42 mi (3,763.32 km) |
| Takoma Park to Orcutt (California) | 2,392.35 mi (3,850.11 km) |
| Takoma Park to Oregon (Ohio) | 385.59 mi (620.54 km) |
| Takoma Park to Oregon (Wisconsin) | 700.57 mi (1,127.46 km) |
| Takoma Park to Oregon City (Oregon) | 2,343.66 mi (3,771.75 km) |
| Takoma Park to Orem (Utah) | 1,836.52 mi (2,955.59 km) |
| Takoma Park to Orinda (California) | 2,420.88 mi (3,896.04 km) |
| Takoma Park to Orland Park (Illinois) | 599.86 mi (965.39 km) |
| Takoma Park to Orlando (Florida) | 767.01 mi (1,234.38 km) |
| Takoma Park to Ormond Beach (Florida) | 708.64 mi (1,140.45 km) |
| Takoma Park to Oro Valley (Arizona) | 1,947.32 mi (3,133.92 km) |
| Takoma Park to Oroville (California) | 2,359.94 mi (3,797.95 km) |
| Takoma Park to Oshkosh (Wisconsin) | 691.24 mi (1,112.44 km) |
