| Iowa City to Robertsville (New Jersey) | 901.90 mi (1,451.46 km) |
| Iowa City to Robinson (Texas) | 769.93 mi (1,239.08 km) |
| Iowa City to Robstown (Texas) | 1,018.51 mi (1,639.13 km) |
| Iowa City to Rochester (Michigan) | 436.34 mi (702.22 km) |
| Iowa City to Rochester (Minnesota) | 169.95 mi (273.50 km) |
| Iowa City to Rochester (New Hampshire) | 1,050.74 mi (1,691.01 km) |
| Iowa City to Rochester (New York) | 716.58 mi (1,153.23 km) |
| Iowa City to Rochester Hills (Michigan) | 434.33 mi (698.98 km) |
| Iowa City to Rock Hill (South Carolina) | 733.72 mi (1,180.81 km) |
| Iowa City to Rock Island (Illinois) | 50.65 mi (81.51 km) |
| Iowa City to Rock Springs (Wyoming) | 912.08 mi (1,467.85 km) |
| Iowa City to Rockford (Illinois) | 133.40 mi (214.69 km) |
| Iowa City to Rockledge (Florida) | 1,103.53 mi (1,775.97 km) |
| Iowa City to Rocklin (California) | 1,572.03 mi (2,529.94 km) |
| Iowa City to Rockport (Texas) | 992.00 mi (1,596.47 km) |
