| Oak Ridge to Rockville (Maryland) | 446.43 mi (718.45 km) |
| Oak Ridge to Rockville Centre (New York) | 662.01 mi (1,065.40 km) |
| Oak Ridge to Rockwall (Texas) | 722.70 mi (1,163.08 km) |
| Oak Ridge to Rocky Mount (North Carolina) | 362.85 mi (583.96 km) |
| Oak Ridge to Rocky Point (New York) | 703.22 mi (1,131.72 km) |
| Oak Ridge to Rocky River (Ohio) | 402.52 mi (647.79 km) |
| Oak Ridge to Roessleville (New York) | 727.82 mi (1,171.31 km) |
| Oak Ridge to Rogers (Arkansas) | 550.43 mi (885.83 km) |
| Oak Ridge to Rogers (Minnesota) | 801.00 mi (1,289.08 km) |
| Oak Ridge to Rohnert Park (California) | 2,105.92 mi (3,389.16 km) |
| Oak Ridge to Rolla (Missouri) | 434.27 mi (698.88 km) |
| Oak Ridge to Rolling Meadows (Illinois) | 467.19 mi (751.87 km) |
| Oak Ridge to Roma (Texas) | 1,089.28 mi (1,753.02 km) |
| Oak Ridge to Rome (Georgia) | 127.68 mi (205.49 km) |
| Oak Ridge to Rome (New York) | 685.82 mi (1,103.72 km) |
