| Sun Prairie to Ridgefield Park (New Jersey) | 796.27 mi (1,281.47 km) |
| Sun Prairie to Ridgeland (Mississippi) | 745.02 mi (1,198.99 km) |
| Sun Prairie to Ridgewood (New Jersey) | 789.14 mi (1,269.99 km) |
| Sun Prairie to Rifle (Colorado) | 991.48 mi (1,595.63 km) |
| Sun Prairie to Rincon (Georgia) | 869.08 mi (1,398.65 km) |
| Sun Prairie to Ringwood (New Jersey) | 778.66 mi (1,253.13 km) |
| Sun Prairie to Río Grande (Puerto Rico) | 2,189.96 mi (3,524.39 km) |
| Sun Prairie to Rio Grande City (Texas) | 1,279.88 mi (2,059.77 km) |
| Sun Prairie to Rio Linda (California) | 1,698.59 mi (2,733.61 km) |
| Sun Prairie to Rio Rancho (New Mexico) | 1,078.90 mi (1,736.32 km) |
| Sun Prairie to Rio Rico (Arizona) | 1,435.23 mi (2,309.77 km) |
| Sun Prairie to Ripon (California) | 1,707.28 mi (2,747.60 km) |
| Sun Prairie to River Edge (New Jersey) | 793.91 mi (1,277.67 km) |
| Sun Prairie to River Falls (Wisconsin) | 204.40 mi (328.95 km) |
| Sun Prairie to River Forest (Illinois) | 114.52 mi (184.30 km) |
