| Karlovo to Reinbek | 1,003.77 mi (1,615.41 km) |
| Karlovo to Reinfeld | 1,012.12 mi (1,628.84 km) |
| Karlovo to Reinheim | 907.79 mi (1,460.95 km) |
| Karlovo to Reiskirchen | 933.17 mi (1,501.80 km) |
| Karlovo to Rellingen | 1,023.43 mi (1,647.05 km) |
| Karlovo to Remagen | 994.39 mi (1,600.32 km) |
| Karlovo to Remscheid | 1,014.97 mi (1,633.44 km) |
| Karlovo to Rendsburg | 1,058.33 mi (1,703.22 km) |
| Karlovo to Renningen | 872.51 mi (1,404.16 km) |
| Karlovo to Reutlingen | 853.08 mi (1,372.90 km) |
| Karlovo to Rhaude | 1,075.39 mi (1,730.67 km) |
| Karlovo to Rheda-Wiedenbruck | 997.69 mi (1,605.63 km) |
| Karlovo to Rhede | 1,055.66 mi (1,698.91 km) |
| Karlovo to Rheinau | 912.26 mi (1,468.14 km) |
| Karlovo to Rheinbach | 1,007.09 mi (1,620.75 km) |
