| Mainz to Rivarolo Canavese | 322.44 mi (518.92 km) |
| Mainz to Rivoli | 341.29 mi (549.25 km) |
| Mainz to Rocca di Papa | 606.45 mi (975.98 km) |
| Mainz to Rocca Priora | 606.21 mi (975.60 km) |
| Mainz to Roccapiemonte | 708.77 mi (1,140.65 km) |
| Mainz to Roccastrada | 501.10 mi (806.44 km) |
| Mainz to Romano di Lombardia | 316.19 mi (508.86 km) |
| Mainz to Rome | 594.31 mi (956.44 km) |
| Mainz to Roncade | 356.35 mi (573.49 km) |
| Mainz to Ronchi dei Legionari | 375.26 mi (603.93 km) |
| Mainz to Ronciglione | 563.99 mi (907.66 km) |
| Mainz to Rosa | 336.42 mi (541.41 km) |
| Mainz to Rosarno | 880.32 mi (1,416.74 km) |
| Mainz to Rosignano Marittimo | 466.60 mi (750.92 km) |
| Mainz to Rosolini | 968.65 mi (1,558.88 km) |
