| Mackworth to Rockville (Maryland) | 3,574.80 mi (5,753.09 km) |
| Mackworth to Rockville Centre (New York) | 3,362.47 mi (5,411.37 km) |
| Mackworth to Rockwall (Texas) | 4,630.86 mi (7,452.65 km) |
| Mackworth to Rocky Mount (North Carolina) | 3,747.33 mi (6,030.75 km) |
| Mackworth to Rocky Point (New York) | 3,322.30 mi (5,346.72 km) |
| Mackworth to Rocky River (Ohio) | 3,649.29 mi (5,872.96 km) |
| Mackworth to Roessleville (New York) | 3,279.43 mi (5,277.73 km) |
| Mackworth to Rogers (Arkansas) | 4,368.92 mi (7,031.10 km) |
| Mackworth to Rogers (Minnesota) | 3,908.76 mi (6,290.55 km) |
| Mackworth to Rohnert Park (California) | 5,216.42 mi (8,395.01 km) |
| Mackworth to Rolla (Missouri) | 4,196.73 mi (6,753.98 km) |
| Mackworth to Rolling Meadows (Illinois) | 3,855.49 mi (6,204.81 km) |
| Mackworth to Roma (Texas) | 5,075.14 mi (8,167.65 km) |
| Mackworth to Rome (Georgia) | 4,125.71 mi (6,639.69 km) |
| Mackworth to Rome (New York) | 3,323.23 mi (5,348.21 km) |
