| Rockford to Romeoville (Illinois) | 65.86 mi (105.99 km) |
| Rockford to Romulus (Michigan) | 291.41 mi (468.99 km) |
| Rockford to Ronkonkoma (New York) | 829.30 mi (1,334.63 km) |
| Rockford to Roosevelt (New York) | 807.70 mi (1,299.87 km) |
| Rockford to Rosamond (California) | 1,646.31 mi (2,649.47 km) |
| Rockford to Rosaryville (Maryland) | 685.83 mi (1,103.73 km) |
| Rockford to Roscoe (Illinois) | 11.82 mi (19.02 km) |
| Rockford to Rose Hill (Virginia) | 671.45 mi (1,080.59 km) |
| Rockford to Roseburg (Oregon) | 1,728.95 mi (2,782.47 km) |
| Rockford to Rosedale (California) | 1,680.59 mi (2,704.65 km) |
| Rockford to Rosedale (Maryland) | 686.56 mi (1,104.92 km) |
| Rockford to Roselle (Illinois) | 53.69 mi (86.40 km) |
| Rockford to Roselle (New Jersey) | 773.59 mi (1,244.97 km) |
| Rockford to Roselle Park (New Jersey) | 773.05 mi (1,244.10 km) |
| Rockford to Rosemead (California) | 1,665.12 mi (2,679.76 km) |
