| Idar-Oberstein to Rossano | 835.99 mi (1,345.39 km) |
| Idar-Oberstein to Rottofreno | 338.07 mi (544.07 km) |
| Idar-Oberstein to Rovato | 312.40 mi (502.76 km) |
| Idar-Oberstein to Roverbella | 346.76 mi (558.06 km) |
| Idar-Oberstein to Rovereto | 316.20 mi (508.88 km) |
| Idar-Oberstein to Rovigo | 382.31 mi (615.27 km) |
| Idar-Oberstein to Rozzano | 311.05 mi (500.58 km) |
| Idar-Oberstein to Rubano | 361.51 mi (581.79 km) |
| Idar-Oberstein to Rubiera | 385.71 mi (620.74 km) |
| Idar-Oberstein to Ruffano | 857.70 mi (1,380.33 km) |
| Idar-Oberstein to Russi | 430.23 mi (692.38 km) |
| Idar-Oberstein to Rutigliano | 763.40 mi (1,228.57 km) |
| Idar-Oberstein to Ruvo di Puglia | 740.76 mi (1,192.15 km) |
| Idar-Oberstein to Sabaudia | 643.18 mi (1,035.09 km) |
| Idar-Oberstein to Sacile | 353.11 mi (568.28 km) |
