| Sliven to Ratzeburg | 1,041.77 mi (1,676.56 km) |
| Sliven to Raubling | 775.33 mi (1,247.78 km) |
| Sliven to Rauenberg | 957.78 mi (1,541.40 km) |
| Sliven to Raunheim | 988.32 mi (1,590.55 km) |
| Sliven to Ravensburg | 884.32 mi (1,423.18 km) |
| Sliven to Recke | 1,091.01 mi (1,755.82 km) |
| Sliven to Recklinghausen | 1,085.77 mi (1,747.37 km) |
| Sliven to Regen | 767.98 mi (1,235.94 km) |
| Sliven to Regensburg | 811.51 mi (1,306.01 km) |
| Sliven to Regenstauf | 813.12 mi (1,308.59 km) |
| Sliven to Rehau | 856.35 mi (1,378.17 km) |
| Sliven to Rehburg-Loccum | 1,040.75 mi (1,674.93 km) |
| Sliven to Rehlingen-Siersburg | 1,045.78 mi (1,683.01 km) |
| Sliven to Reichelsheim | 964.03 mi (1,551.46 km) |
| Sliven to Reichenbach/Vogtland | 859.77 mi (1,383.67 km) |
