| Sofia to Rockville (Maryland) | 4,913.31 mi (7,907.21 km) |
| Sofia to Rockville Centre (New York) | 4,699.76 mi (7,563.53 km) |
| Sofia to Rockwall (Texas) | 5,971.87 mi (9,610.80 km) |
| Sofia to Rocky Mount (North Carolina) | 5,080.68 mi (8,176.56 km) |
| Sofia to Rocky Point (New York) | 4,659.28 mi (7,498.38 km) |
| Sofia to Rocky River (Ohio) | 4,991.93 mi (8,033.73 km) |
| Sofia to Roessleville (New York) | 4,620.06 mi (7,435.28 km) |
| Sofia to Rogers (Arkansas) | 5,708.81 mi (9,187.45 km) |
| Sofia to Rogers (Minnesota) | 5,231.68 mi (8,419.58 km) |
| Sofia to Rohnert Park (California) | 6,445.05 mi (10,372.30 km) |
| Sofia to Rolla (Missouri) | 5,537.09 mi (8,911.08 km) |
| Sofia to Rolling Meadows (Illinois) | 5,194.41 mi (8,359.60 km) |
| Sofia to Roma (Texas) | 6,417.76 mi (10,328.39 km) |
| Sofia to Rome (Georgia) | 5,465.87 mi (8,796.47 km) |
| Sofia to Rome (New York) | 4,665.27 mi (7,508.03 km) |
