| Ferentino to Rockville (Maryland) | 4,523.59 mi (7,280.02 km) |
| Ferentino to Rockville Centre (New York) | 4,307.87 mi (6,932.85 km) |
| Ferentino to Rockwall (Texas) | 5,621.63 mi (9,047.14 km) |
| Ferentino to Rocky Mount (North Carolina) | 4,677.56 mi (7,527.80 km) |
| Ferentino to Rocky Point (New York) | 4,266.83 mi (6,866.80 km) |
| Ferentino to Rocky River (Ohio) | 4,629.72 mi (7,450.82 km) |
| Ferentino to Roessleville (New York) | 4,239.85 mi (6,823.38 km) |
| Ferentino to Rogers (Arkansas) | 5,365.14 mi (8,634.35 km) |
| Ferentino to Rogers (Minnesota) | 4,931.52 mi (7,936.51 km) |
| Ferentino to Rohnert Park (California) | 6,251.44 mi (10,060.72 km) |
| Ferentino to Rolla (Missouri) | 5,191.94 mi (8,355.63 km) |
| Ferentino to Rolling Meadows (Illinois) | 4,856.67 mi (7,816.05 km) |
| Ferentino to Roma (Texas) | 6,049.96 mi (9,736.47 km) |
| Ferentino to Rome (Georgia) | 5,078.93 mi (8,173.74 km) |
| Ferentino to Rome (New York) | 4,293.02 mi (6,908.95 km) |
