| Clay to Ratingen | 4,582.49 mi (7,374.81 km) |
| Clay to Ratzeburg | 4,658.08 mi (7,496.45 km) |
| Clay to Raubling | 4,902.92 mi (7,890.49 km) |
| Clay to Rauenberg | 4,717.47 mi (7,592.04 km) |
| Clay to Raunheim | 4,684.09 mi (7,538.32 km) |
| Clay to Ravensburg | 4,801.62 mi (7,727.46 km) |
| Clay to Recke | 4,584.86 mi (7,378.62 km) |
| Clay to Recklinghausen | 4,586.35 mi (7,381.02 km) |
| Clay to Regen | 4,903.59 mi (7,891.57 km) |
| Clay to Regensburg | 4,860.46 mi (7,822.15 km) |
| Clay to Regenstauf | 4,858.64 mi (7,819.22 km) |
| Clay to Rehau | 4,816.62 mi (7,751.60 km) |
| Clay to Rehburg-Loccum | 4,639.05 mi (7,465.83 km) |
| Clay to Rehlingen-Siersburg | 4,632.59 mi (7,455.43 km) |
| Clay to Reichelsheim | 4,708.96 mi (7,578.33 km) |
