| Karlsruhe to Ratzeburg | 339.49 mi (546.36 km) |
| Karlsruhe to Raubling | 189.55 mi (305.05 km) |
| Karlsruhe to Rauenberg | 22.42 mi (36.08 km) |
| Karlsruhe to Raunheim | 69.64 mi (112.08 km) |
| Karlsruhe to Ravensburg | 101.21 mi (162.89 km) |
| Karlsruhe to Recke | 234.13 mi (376.80 km) |
| Karlsruhe to Recklinghausen | 186.22 mi (299.69 km) |
| Karlsruhe to Regen | 214.41 mi (345.06 km) |
| Karlsruhe to Regensburg | 166.72 mi (268.31 km) |
| Karlsruhe to Regenstauf | 168.76 mi (271.60 km) |
| Karlsruhe to Rehau | 182.98 mi (294.47 km) |
| Karlsruhe to Rehburg-Loccum | 240.37 mi (386.84 km) |
| Karlsruhe to Rehlingen-Siersburg | 81.77 mi (131.60 km) |
| Karlsruhe to Reichelsheim | 52.55 mi (84.57 km) |
| Karlsruhe to Reichenbach/Vogtland | 206.13 mi (331.74 km) |
