| Parker to Romeoville (Illinois) | 885.96 mi (1,425.82 km) |
| Parker to Romulus (Michigan) | 1,131.18 mi (1,820.46 km) |
| Parker to Ronkonkoma (New York) | 1,664.70 mi (2,679.08 km) |
| Parker to Roosevelt (New York) | 1,641.98 mi (2,642.50 km) |
| Parker to Rosamond (California) | 805.28 mi (1,295.97 km) |
| Parker to Rosaryville (Maryland) | 1,492.65 mi (2,402.18 km) |
| Parker to Roscoe (Illinois) | 845.55 mi (1,360.78 km) |
| Parker to Rose Hill (Virginia) | 1,477.47 mi (2,377.76 km) |
| Parker to Roseburg (Oregon) | 994.57 mi (1,600.60 km) |
| Parker to Rosedale (California) | 840.01 mi (1,351.87 km) |
| Parker to Rosedale (Maryland) | 1,502.61 mi (2,418.22 km) |
| Parker to Roselle (Illinois) | 888.66 mi (1,430.16 km) |
| Parker to Roselle (New Jersey) | 1,607.07 mi (2,586.32 km) |
| Parker to Roselle Park (New Jersey) | 1,606.61 mi (2,585.59 km) |
| Parker to Rosemead (California) | 825.50 mi (1,328.52 km) |
