| Idaho Falls to Rheinbach | 4,974.64 mi (8,005.92 km) |
| Idaho Falls to Rheinberg | 4,917.64 mi (7,914.17 km) |
| Idaho Falls to Rheine | 4,903.67 mi (7,891.70 km) |
| Idaho Falls to Rheinfelden (Baden) | 5,159.26 mi (8,303.02 km) |
| Idaho Falls to Ribnitz-Damgarten | 4,935.57 mi (7,943.03 km) |
| Idaho Falls to Richterich | 4,939.61 mi (7,949.53 km) |
| Idaho Falls to Riedlingen | 5,178.34 mi (8,333.73 km) |
| Idaho Falls to Riegelsberg | 5,043.33 mi (8,116.46 km) |
| Idaho Falls to Rielasingen-Worblingen | 5,181.78 mi (8,339.28 km) |
| Idaho Falls to Riesa | 5,116.09 mi (8,233.55 km) |
| Idaho Falls to Rietberg | 4,956.85 mi (7,977.28 km) |
| Idaho Falls to Rinteln | 4,954.58 mi (7,973.63 km) |
| Idaho Falls to Ritterhude | 4,893.83 mi (7,875.86 km) |
| Idaho Falls to Rodenbach | 5,060.18 mi (8,143.58 km) |
| Idaho Falls to Rodental | 5,110.71 mi (8,224.90 km) |
