| Iowa City to Rosemont (California) | 1,582.77 mi (2,547.23 km) |
| Iowa City to Rosemount (Minnesota) | 227.11 mi (365.50 km) |
| Iowa City to Rosenberg (Texas) | 870.47 mi (1,400.88 km) |
| Iowa City to Roseville (California) | 1,576.42 mi (2,537.00 km) |
| Iowa City to Roseville (Michigan) | 444.38 mi (715.17 km) |
| Iowa City to Roseville (Minnesota) | 246.04 mi (395.97 km) |
| Iowa City to Rossmoor (California) | 1,541.87 mi (2,481.40 km) |
| Iowa City to Rossville (Maryland) | 805.50 mi (1,296.33 km) |
| Iowa City to Roswell (Georgia) | 655.49 mi (1,054.90 km) |
| Iowa City to Roswell (New Mexico) | 912.03 mi (1,467.76 km) |
| Iowa City to Round Lake (Illinois) | 182.12 mi (293.10 km) |
| Iowa City to Round Lake Beach (Illinois) | 183.96 mi (296.05 km) |
| Iowa City to Round Rock (Texas) | 841.16 mi (1,353.71 km) |
| Iowa City to Rowland Heights (California) | 1,526.33 mi (2,456.40 km) |
| Iowa City to Rowlett (Texas) | 663.62 mi (1,067.99 km) |
