| Gretna to Rodgau | 5,030.57 mi (8,095.92 km) |
| Gretna to Roding | 5,200.83 mi (8,369.93 km) |
| Gretna to Rodinghausen | 4,947.44 mi (7,962.14 km) |
| Gretna to Roetgen | 4,904.89 mi (7,893.65 km) |
| Gretna to Rommerskirchen | 4,913.42 mi (7,907.39 km) |
| Gretna to Ronnenberg | 4,990.17 mi (8,030.91 km) |
| Gretna to Rosbach vor der Hohe | 5,014.71 mi (8,070.39 km) |
| Gretna to Rosdorf | 5,024.68 mi (8,086.44 km) |
| Gretna to Rosenheim | 5,230.72 mi (8,418.03 km) |
| Gretna to Rosrath | 4,936.76 mi (7,944.94 km) |
| Gretna to Rossdorf | 5,030.32 mi (8,095.53 km) |
| Gretna to Rosstal | 5,129.53 mi (8,255.17 km) |
| Gretna to Rostock | 5,026.66 mi (8,089.63 km) |
| Gretna to Rotenburg an der Fulda | 5,033.62 mi (8,100.83 km) |
| Gretna to Roth | 5,142.77 mi (8,276.50 km) |
