| Mercer Island to Rodgau | 5,093.19 mi (8,196.70 km) |
| Mercer Island to Roding | 5,224.97 mi (8,408.77 km) |
| Mercer Island to Rodinghausen | 4,953.15 mi (7,971.32 km) |
| Mercer Island to Roetgen | 4,992.25 mi (8,034.25 km) |
| Mercer Island to Rommerskirchen | 4,981.97 mi (8,017.71 km) |
| Mercer Island to Ronnenberg | 4,975.85 mi (8,007.85 km) |
| Mercer Island to Rosbach vor der Hohe | 5,072.39 mi (8,163.22 km) |
| Mercer Island to Rosdorf | 5,029.48 mi (8,094.16 km) |
| Mercer Island to Rosenheim | 5,297.31 mi (8,525.20 km) |
| Mercer Island to Rosrath | 5,001.51 mi (8,049.15 km) |
| Mercer Island to Rossdorf | 5,099.46 mi (8,206.79 km) |
| Mercer Island to Rosstal | 5,176.04 mi (8,330.04 km) |
| Mercer Island to Rostock | 4,924.86 mi (7,925.80 km) |
| Mercer Island to Rotenburg an der Fulda | 5,055.23 mi (8,135.60 km) |
| Mercer Island to Roth | 5,189.96 mi (8,352.43 km) |
