| Rock Island to Romeoville (Illinois) | 128.87 mi (207.40 km) |
| Rock Island to Romulus (Michigan) | 374.96 mi (603.44 km) |
| Rock Island to Ronkonkoma (New York) | 908.09 mi (1,461.43 km) |
| Rock Island to Roosevelt (New York) | 885.67 mi (1,425.34 km) |
| Rock Island to Rosamond (California) | 1,561.21 mi (2,512.52 km) |
| Rock Island to Rosaryville (Maryland) | 749.52 mi (1,206.24 km) |
| Rock Island to Roscoe (Illinois) | 104.42 mi (168.06 km) |
| Rock Island to Rose Hill (Virginia) | 734.70 mi (1,182.39 km) |
| Rock Island to Roseburg (Oregon) | 1,667.05 mi (2,682.86 km) |
| Rock Island to Rosedale (California) | 1,597.09 mi (2,570.27 km) |
| Rock Island to Rosedale (Maryland) | 754.33 mi (1,213.97 km) |
| Rock Island to Roselle (Illinois) | 133.49 mi (214.83 km) |
| Rock Island to Roselle (New Jersey) | 850.97 mi (1,369.51 km) |
| Rock Island to Roselle Park (New Jersey) | 850.49 mi (1,368.73 km) |
| Rock Island to Rosemead (California) | 1,578.64 mi (2,540.57 km) |
