| Greenock to Rivalta di Torino | 924.63 mi (1,488.04 km) |
| Greenock to Rivarolo Canavese | 912.17 mi (1,467.99 km) |
| Greenock to Rivoli | 922.49 mi (1,484.61 km) |
| Greenock to Rocca di Papa | 1,254.25 mi (2,018.52 km) |
| Greenock to Rocca Priora | 1,254.68 mi (2,019.21 km) |
| Greenock to Roccapiemonte | 1,368.44 mi (2,202.29 km) |
| Greenock to Roccastrada | 1,139.28 mi (1,833.49 km) |
| Greenock to Romano di Lombardia | 956.64 mi (1,539.57 km) |
| Greenock to Rome | 1,240.40 mi (1,996.23 km) |
| Greenock to Roncade | 1,028.95 mi (1,655.93 km) |
| Greenock to Ronchi dei Legionari | 1,053.53 mi (1,695.50 km) |
| Greenock to Ronciglione | 1,209.93 mi (1,947.20 km) |
| Greenock to Rosa | 1,005.25 mi (1,617.80 km) |
| Greenock to Rosarno | 1,537.90 mi (2,475.01 km) |
| Greenock to Rosignano Marittimo | 1,097.51 mi (1,766.27 km) |
