| Le Mars to Rockville (Maryland) | 1,022.62 mi (1,645.74 km) |
| Le Mars to Rockville Centre (New York) | 1,167.75 mi (1,879.31 km) |
| Le Mars to Rockwall (Texas) | 681.69 mi (1,097.08 km) |
| Le Mars to Rocky Mount (North Carolina) | 1,085.06 mi (1,746.24 km) |
| Le Mars to Rocky Point (New York) | 1,198.73 mi (1,929.16 km) |
| Le Mars to Rocky River (Ohio) | 738.52 mi (1,188.54 km) |
| Le Mars to Roessleville (New York) | 1,132.20 mi (1,822.10 km) |
| Le Mars to Rogers (Arkansas) | 459.36 mi (739.27 km) |
| Le Mars to Rogers (Minnesota) | 210.37 mi (338.56 km) |
| Le Mars to Rohnert Park (California) | 1,419.18 mi (2,283.95 km) |
| Le Mars to Rolla (Missouri) | 406.76 mi (654.62 km) |
| Le Mars to Rolling Meadows (Illinois) | 418.24 mi (673.09 km) |
| Le Mars to Roma (Texas) | 1,141.90 mi (1,837.71 km) |
| Le Mars to Rome (Georgia) | 834.59 mi (1,343.13 km) |
| Le Mars to Rome (New York) | 1,042.84 mi (1,678.30 km) |
