| Parker to Rosemont (California) | 891.13 mi (1,434.13 km) |
| Parker to Rosemount (Minnesota) | 699.70 mi (1,126.06 km) |
| Parker to Rosenberg (Texas) | 855.46 mi (1,376.73 km) |
| Parker to Roseville (California) | 886.82 mi (1,427.20 km) |
| Parker to Roseville (Michigan) | 1,153.98 mi (1,857.14 km) |
| Parker to Roseville (Minnesota) | 704.55 mi (1,133.86 km) |
| Parker to Rossmoor (California) | 835.52 mi (1,344.63 km) |
| Parker to Rossville (Maryland) | 1,503.93 mi (2,420.34 km) |
| Parker to Roswell (Georgia) | 1,188.70 mi (1,913.03 km) |
| Parker to Roswell (New Mexico) | 424.13 mi (682.58 km) |
| Parker to Round Lake (Illinois) | 890.41 mi (1,432.98 km) |
| Parker to Round Lake Beach (Illinois) | 891.97 mi (1,435.49 km) |
| Parker to Round Rock (Texas) | 738.99 mi (1,189.30 km) |
| Parker to Rowland Heights (California) | 819.64 mi (1,319.08 km) |
| Parker to Rowlett (Texas) | 645.82 mi (1,039.35 km) |
