| Kocaeli to Rodgau | 1,198.06 mi (1,928.09 km) |
| Kocaeli to Roding | 1,027.16 mi (1,653.05 km) |
| Kocaeli to Rodinghausen | 1,283.77 mi (2,066.02 km) |
| Kocaeli to Roetgen | 1,324.08 mi (2,130.90 km) |
| Kocaeli to Rommerskirchen | 1,314.58 mi (2,115.61 km) |
| Kocaeli to Ronnenberg | 1,243.42 mi (2,001.09 km) |
| Kocaeli to Rosbach vor der Hohe | 1,213.48 mi (1,952.91 km) |
| Kocaeli to Rosdorf | 1,205.32 mi (1,939.77 km) |
| Kocaeli to Rosenheim | 1,003.08 mi (1,614.31 km) |
| Kocaeli to Rosrath | 1,291.24 mi (2,078.05 km) |
| Kocaeli to Rossdorf | 1,198.82 mi (1,929.32 km) |
| Kocaeli to Rosstal | 1,099.07 mi (1,768.78 km) |
| Kocaeli to Rostock | 1,233.30 mi (1,984.81 km) |
| Kocaeli to Rotenburg an der Fulda | 1,194.78 mi (1,922.82 km) |
| Kocaeli to Roth | 1,086.03 mi (1,747.80 km) |
