| Oak Ridge to Rosemont (California) | 2,032.20 mi (3,270.51 km) |
| Oak Ridge to Rosemount (Minnesota) | 761.62 mi (1,225.72 km) |
| Oak Ridge to Rosenberg (Texas) | 802.44 mi (1,291.40 km) |
| Oak Ridge to Roseville (California) | 2,028.56 mi (3,264.65 km) |
| Oak Ridge to Roseville (Michigan) | 457.89 mi (736.90 km) |
| Oak Ridge to Roseville (Minnesota) | 778.65 mi (1,253.12 km) |
| Oak Ridge to Rossmoor (California) | 1,911.49 mi (3,076.24 km) |
| Oak Ridge to Rossville (Maryland) | 487.37 mi (784.35 km) |
| Oak Ridge to Roswell (Georgia) | 133.03 mi (214.09 km) |
| Oak Ridge to Roswell (New Mexico) | 1,161.60 mi (1,869.42 km) |
| Oak Ridge to Round Lake (Illinois) | 485.67 mi (781.61 km) |
| Oak Ridge to Round Lake Beach (Illinois) | 487.33 mi (784.28 km) |
| Oak Ridge to Round Rock (Texas) | 858.02 mi (1,380.84 km) |
| Oak Ridge to Rowland Heights (California) | 1,897.90 mi (3,054.38 km) |
| Oak Ridge to Rowlett (Texas) | 728.80 mi (1,172.89 km) |
