| Gretna to Rivalta di Torino | 5,127.44 mi (8,251.82 km) |
| Gretna to Rivarolo Canavese | 5,126.83 mi (8,250.84 km) |
| Gretna to Rivoli | 5,126.30 mi (8,249.99 km) |
| Gretna to Rocca di Papa | 5,464.62 mi (8,794.46 km) |
| Gretna to Rocca Priora | 5,466.26 mi (8,797.09 km) |
| Gretna to Roccapiemonte | 5,588.40 mi (8,993.67 km) |
| Gretna to Roccastrada | 5,353.25 mi (8,615.22 km) |
| Gretna to Romano di Lombardia | 5,208.44 mi (8,382.18 km) |
| Gretna to Rome | 5,449.82 mi (8,770.63 km) |
| Gretna to Roncade | 5,316.12 mi (8,555.48 km) |
| Gretna to Ronchi dei Legionari | 5,355.84 mi (8,619.39 km) |
| Gretna to Ronciglione | 5,424.13 mi (8,729.30 km) |
| Gretna to Rosa | 5,287.36 mi (8,509.18 km) |
| Gretna to Rosarno | 5,730.51 mi (9,222.37 km) |
| Gretna to Rosignano Marittimo | 5,309.25 mi (8,544.42 km) |
