| Sun Prairie to Rome (New York) | 691.49 mi (1,112.84 km) |
| Sun Prairie to Romeoville (Illinois) | 121.82 mi (196.05 km) |
| Sun Prairie to Romulus (Michigan) | 305.26 mi (491.27 km) |
| Sun Prairie to Ronkonkoma (New York) | 842.13 mi (1,355.27 km) |
| Sun Prairie to Roosevelt (New York) | 821.63 mi (1,322.29 km) |
| Sun Prairie to Rosamond (California) | 1,648.19 mi (2,652.50 km) |
| Sun Prairie to Rosaryville (Maryland) | 714.66 mi (1,150.14 km) |
| Sun Prairie to Roscoe (Illinois) | 53.56 mi (86.19 km) |
| Sun Prairie to Rose Hill (Virginia) | 700.76 mi (1,127.76 km) |
| Sun Prairie to Roseburg (Oregon) | 1,706.13 mi (2,745.75 km) |
| Sun Prairie to Rosedale (California) | 1,680.17 mi (2,703.98 km) |
| Sun Prairie to Rosedale (Maryland) | 711.85 mi (1,145.62 km) |
| Sun Prairie to Roselle (Illinois) | 101.57 mi (163.46 km) |
| Sun Prairie to Roselle (New Jersey) | 788.40 mi (1,268.80 km) |
| Sun Prairie to Roselle Park (New Jersey) | 787.80 mi (1,267.84 km) |
