| Ferentino to Rivarolo Canavese | 374.54 mi (602.76 km) |
| Ferentino to Rivoli | 370.81 mi (596.76 km) |
| Ferentino to Rocca di Papa | 28.10 mi (45.22 km) |
| Ferentino to Rocca Priora | 25.86 mi (41.62 km) |
| Ferentino to Roccapiemonte | 98.39 mi (158.34 km) |
| Ferentino to Roccastrada | 140.35 mi (225.87 km) |
| Ferentino to Romano di Lombardia | 317.45 mi (510.88 km) |
| Ferentino to Rome | 42.10 mi (67.75 km) |
| Ferentino to Roncade | 275.79 mi (443.84 km) |
| Ferentino to Ronchi dei Legionari | 287.01 mi (461.89 km) |
| Ferentino to Ronciglione | 67.68 mi (108.92 km) |
| Ferentino to Rosa | 288.35 mi (464.05 km) |
| Ferentino to Rosarno | 263.89 mi (424.69 km) |
| Ferentino to Rosignano Marittimo | 184.76 mi (297.35 km) |
| Ferentino to Rosolini | 348.31 mi (560.56 km) |
