| Idrija to Rosemont (California) | 5,974.43 mi (9,614.92 km) |
| Idrija to Rosemount (Minnesota) | 4,754.54 mi (7,651.70 km) |
| Idrija to Rosenberg (Texas) | 5,624.18 mi (9,051.24 km) |
| Idrija to Roseville (California) | 5,960.08 mi (9,591.83 km) |
| Idrija to Roseville (Michigan) | 4,485.12 mi (7,218.11 km) |
| Idrija to Roseville (Minnesota) | 4,744.59 mi (7,635.67 km) |
| Idrija to Rossmoor (California) | 6,167.06 mi (9,924.92 km) |
| Idrija to Rossville (Maryland) | 4,364.09 mi (7,023.33 km) |
| Idrija to Roswell (Georgia) | 4,933.94 mi (7,940.40 km) |
| Idrija to Roswell (New Mexico) | 5,748.51 mi (9,251.34 km) |
| Idrija to Round Lake (Illinois) | 4,689.68 mi (7,547.31 km) |
| Idrija to Round Lake Beach (Illinois) | 4,687.08 mi (7,543.12 km) |
| Idrija to Round Rock (Texas) | 5,645.37 mi (9,085.34 km) |
| Idrija to Rowland Heights (California) | 6,150.63 mi (9,898.49 km) |
| Idrija to Rowlett (Texas) | 5,477.89 mi (8,815.82 km) |
