| Le Mars to Romeoville (Illinois) | 420.59 mi (676.87 km) |
| Le Mars to Romulus (Michigan) | 652.90 mi (1,050.74 km) |
| Le Mars to Ronkonkoma (New York) | 1,191.39 mi (1,917.36 km) |
| Le Mars to Roosevelt (New York) | 1,170.25 mi (1,883.33 km) |
| Le Mars to Rosamond (California) | 1,301.32 mi (2,094.27 km) |
| Le Mars to Rosaryville (Maryland) | 1,046.96 mi (1,684.91 km) |
| Le Mars to Roscoe (Illinois) | 365.10 mi (587.57 km) |
| Le Mars to Rose Hill (Virginia) | 1,032.33 mi (1,661.37 km) |
| Le Mars to Roseburg (Oregon) | 1,367.61 mi (2,200.96 km) |
| Le Mars to Rosedale (California) | 1,331.24 mi (2,142.43 km) |
| Le Mars to Rosedale (Maryland) | 1,049.41 mi (1,688.86 km) |
| Le Mars to Roselle (Illinois) | 416.27 mi (669.93 km) |
| Le Mars to Roselle (New Jersey) | 1,136.43 mi (1,828.90 km) |
| Le Mars to Roselle Park (New Jersey) | 1,135.87 mi (1,828.00 km) |
| Le Mars to Rosemead (California) | 1,324.48 mi (2,131.54 km) |
