| Parker to Rockville (Maryland) | 1,471.32 mi (2,367.87 km) |
| Parker to Rockville Centre (New York) | 1,639.28 mi (2,638.16 km) |
| Parker to Rockwall (Texas) | 650.16 mi (1,046.33 km) |
| Parker to Rocky Mount (North Carolina) | 1,488.12 mi (2,394.90 km) |
| Parker to Rocky Point (New York) | 1,673.30 mi (2,692.92 km) |
| Parker to Rocky River (Ohio) | 1,208.55 mi (1,944.98 km) |
| Parker to Roessleville (New York) | 1,618.64 mi (2,604.95 km) |
| Parker to Rogers (Arkansas) | 619.10 mi (996.35 km) |
| Parker to Rogers (Minnesota) | 692.41 mi (1,114.33 km) |
| Parker to Rohnert Park (California) | 965.00 mi (1,553.01 km) |
| Parker to Rolla (Missouri) | 709.12 mi (1,141.22 km) |
| Parker to Rolling Meadows (Illinois) | 892.41 mi (1,436.20 km) |
| Parker to Roma (Texas) | 963.82 mi (1,551.11 km) |
| Parker to Rome (Georgia) | 1,138.74 mi (1,832.62 km) |
| Parker to Rome (New York) | 1,531.99 mi (2,465.50 km) |
