| Idrija to Roy (Utah) | 5,559.51 mi (8,947.16 km) |
| Idrija to Royal Kunia (Hawaii) | 7,752.82 mi (12,476.95 km) |
| Idrija to Royal Oak (Michigan) | 4,493.49 mi (7,231.57 km) |
| Idrija to Royal Palm Beach (Florida) | 5,106.20 mi (8,217.64 km) |
| Idrija to Royse City (Texas) | 5,465.86 mi (8,796.46 km) |
| Idrija to Ruskin (Florida) | 5,155.01 mi (8,296.19 km) |
| Idrija to Russellville (Alabama) | 5,049.96 mi (8,127.12 km) |
| Idrija to Russellville (Arkansas) | 5,225.93 mi (8,410.32 km) |
| Idrija to Ruston (Louisiana) | 5,344.62 mi (8,601.34 km) |
| Idrija to Rutherford (New Jersey) | 4,203.10 mi (6,764.24 km) |
| Idrija to Rutland (Vermont) | 4,042.20 mi (6,505.29 km) |
| Idrija to Sabana Grande (Puerto Rico) | 4,900.98 mi (7,887.36 km) |
| Idrija to Sachse (Texas) | 5,476.10 mi (8,812.94 km) |
| Idrija to Saco (Maine) | 3,941.87 mi (6,343.82 km) |
| Idrija to Sacramento (California) | 5,976.22 mi (9,617.80 km) |
