| Idar-Oberstein to Reinosa | 714.91 mi (1,150.53 km) |
| Idar-Oberstein to Requena | 817.67 mi (1,315.92 km) |
| Idar-Oberstein to Reus | 662.78 mi (1,066.64 km) |
| Idar-Oberstein to Rianxo | 910.06 mi (1,464.60 km) |
| Idar-Oberstein to Ribadeo | 801.79 mi (1,290.36 km) |
| Idar-Oberstein to Rincon de la Victoria | 1,068.28 mi (1,719.23 km) |
| Idar-Oberstein to Ripoll | 573.96 mi (923.70 km) |
| Idar-Oberstein to Ripollet | 619.50 mi (996.99 km) |
| Idar-Oberstein to Rojales | 895.98 mi (1,441.94 km) |
| Idar-Oberstein to Ronda | 1,091.48 mi (1,756.57 km) |
| Idar-Oberstein to Roquetas de Mar | 1,022.63 mi (1,645.77 km) |
| Idar-Oberstein to Rosas | 551.41 mi (887.40 km) |
| Idar-Oberstein to Rubi | 622.16 mi (1,001.28 km) |
| Idar-Oberstein to Rute | 1,034.59 mi (1,665.02 km) |
| Idar-Oberstein to Sabadell | 617.18 mi (993.25 km) |
