| Denver to Romeoville (Illinois) | 886.80 mi (1,427.17 km) |
| Denver to Romulus (Michigan) | 1,131.48 mi (1,820.94 km) |
| Denver to Ronkonkoma (New York) | 1,665.95 mi (2,681.08 km) |
| Denver to Roosevelt (New York) | 1,643.35 mi (2,644.72 km) |
| Denver to Rosamond (California) | 806.22 mi (1,297.49 km) |
| Denver to Rosaryville (Maryland) | 1,495.91 mi (2,407.44 km) |
| Denver to Roscoe (Illinois) | 845.12 mi (1,360.10 km) |
| Denver to Rose Hill (Virginia) | 1,480.76 mi (2,383.05 km) |
| Denver to Roseburg (Oregon) | 983.42 mi (1,582.66 km) |
| Denver to Rosedale (California) | 839.67 mi (1,351.33 km) |
| Denver to Rosedale (Maryland) | 1,505.37 mi (2,422.65 km) |
| Denver to Roselle (Illinois) | 889.00 mi (1,430.71 km) |
| Denver to Roselle (New Jersey) | 1,608.52 mi (2,588.66 km) |
| Denver to Roselle Park (New Jersey) | 1,608.05 mi (2,587.91 km) |
| Denver to Rosemead (California) | 827.61 mi (1,331.91 km) |
