| Le Mars to Rosemont (California) | 1,346.42 mi (2,166.85 km) |
| Le Mars to Rosemount (Minnesota) | 206.09 mi (331.67 km) |
| Le Mars to Rosenberg (Texas) | 914.68 mi (1,472.04 km) |
| Le Mars to Roseville (California) | 1,339.28 mi (2,155.36 km) |
| Le Mars to Roseville (Michigan) | 672.29 mi (1,081.95 km) |
| Le Mars to Roseville (Minnesota) | 215.43 mi (346.71 km) |
| Le Mars to Rossmoor (California) | 1,335.16 mi (2,148.73 km) |
| Le Mars to Rossville (Maryland) | 1,050.30 mi (1,690.30 km) |
| Le Mars to Roswell (Georgia) | 878.42 mi (1,413.68 km) |
| Le Mars to Roswell (New Mexico) | 792.23 mi (1,274.97 km) |
| Le Mars to Round Lake (Illinois) | 411.50 mi (662.25 km) |
| Le Mars to Round Lake Beach (Illinois) | 412.47 mi (663.81 km) |
| Le Mars to Round Rock (Texas) | 850.65 mi (1,368.99 km) |
| Le Mars to Rowland Heights (California) | 1,319.10 mi (2,122.88 km) |
| Le Mars to Rowlett (Texas) | 681.95 mi (1,097.49 km) |
