| Ilsenburg to Ratzeburg | 126.70 mi (203.90 km) |
| Ilsenburg to Raubling | 288.82 mi (464.81 km) |
| Ilsenburg to Rauenberg | 199.46 mi (321.00 km) |
| Ilsenburg to Raunheim | 160.58 mi (258.43 km) |
| Ilsenburg to Ravensburg | 286.16 mi (460.53 km) |
| Ilsenburg to Recke | 130.47 mi (209.98 km) |
| Ilsenburg to Recklinghausen | 151.95 mi (244.53 km) |
| Ilsenburg to Regen | 227.53 mi (366.17 km) |
| Ilsenburg to Regensburg | 206.32 mi (332.03 km) |
| Ilsenburg to Regenstauf | 199.88 mi (321.67 km) |
| Ilsenburg to Rehau | 125.81 mi (202.48 km) |
| Ilsenburg to Rehburg-Loccum | 74.43 mi (119.78 km) |
| Ilsenburg to Rehlingen-Siersburg | 246.13 mi (396.11 km) |
| Ilsenburg to Reichelsheim | 169.07 mi (272.09 km) |
| Ilsenburg to Reichenbach/Vogtland | 111.12 mi (178.83 km) |
