| Karlovo to Ratzeburg | 997.89 mi (1,605.94 km) |
| Karlovo to Raubling | 711.87 mi (1,145.64 km) |
| Karlovo to Rauenberg | 896.09 mi (1,442.12 km) |
| Karlovo to Raunheim | 928.84 mi (1,494.83 km) |
| Karlovo to Ravensburg | 818.58 mi (1,317.37 km) |
| Karlovo to Recke | 1,038.34 mi (1,671.05 km) |
| Karlovo to Recklinghausen | 1,029.98 mi (1,657.60 km) |
| Karlovo to Regen | 710.72 mi (1,143.79 km) |
| Karlovo to Regensburg | 752.81 mi (1,211.54 km) |
| Karlovo to Regenstauf | 754.91 mi (1,214.91 km) |
| Karlovo to Rehau | 802.39 mi (1,291.32 km) |
| Karlovo to Rehburg-Loccum | 990.31 mi (1,593.75 km) |
| Karlovo to Rehlingen-Siersburg | 982.79 mi (1,581.65 km) |
| Karlovo to Reichelsheim | 903.95 mi (1,454.77 km) |
| Karlovo to Reichenbach/Vogtland | 807.72 mi (1,299.90 km) |
