| River Grove to Rodgau | 4,343.94 mi (6,990.89 km) |
| River Grove to Roding | 4,509.46 mi (7,257.28 km) |
| River Grove to Rodinghausen | 4,244.55 mi (6,830.94 km) |
| River Grove to Roetgen | 4,220.84 mi (6,792.78 km) |
| River Grove to Rommerskirchen | 4,224.89 mi (6,799.30 km) |
| River Grove to Ronnenberg | 4,283.74 mi (6,894.01 km) |
| River Grove to Rosbach vor der Hohe | 4,326.39 mi (6,962.65 km) |
| River Grove to Rosdorf | 4,323.74 mi (6,958.39 km) |
| River Grove to Rosenheim | 4,550.76 mi (7,323.74 km) |
| River Grove to Rosrath | 4,247.95 mi (6,836.42 km) |
| River Grove to Rossdorf | 4,345.32 mi (6,993.12 km) |
| River Grove to Rosstal | 4,441.69 mi (7,148.21 km) |
| River Grove to Rostock | 4,301.39 mi (6,922.42 km) |
| River Grove to Rotenburg an der Fulda | 4,336.98 mi (6,979.69 km) |
| River Grove to Roth | 4,455.48 mi (7,170.40 km) |
