| Idrija to Rivalta di Torino | 322.05 mi (518.29 km) |
| Idrija to Rivarolo Canavese | 308.12 mi (495.87 km) |
| Idrija to Rivoli | 321.48 mi (517.37 km) |
| Idrija to Rocca di Papa | 299.84 mi (482.55 km) |
| Idrija to Rocca Priora | 298.19 mi (479.89 km) |
| Idrija to Roccapiemonte | 363.64 mi (585.22 km) |
| Idrija to Roccastrada | 250.18 mi (402.62 km) |
| Idrija to Romano di Lombardia | 208.88 mi (336.16 km) |
| Idrija to Rome | 294.13 mi (473.36 km) |
| Idrija to Roncade | 83.68 mi (134.67 km) |
| Idrija to Ronchi dei Legionari | 27.92 mi (44.93 km) |
| Idrija to Ronciglione | 271.82 mi (437.45 km) |
| Idrija to Rosa | 110.56 mi (177.93 km) |
| Idrija to Rosarno | 528.87 mi (851.14 km) |
| Idrija to Rosignano Marittimo | 250.78 mi (403.58 km) |
