| Dayton to Rodgau | 4,309.58 mi (6,935.60 km) |
| Dayton to Roding | 4,477.91 mi (7,206.50 km) |
| Dayton to Rodinghausen | 4,218.62 mi (6,789.21 km) |
| Dayton to Roetgen | 4,184.88 mi (6,734.91 km) |
| Dayton to Rommerskirchen | 4,191.26 mi (6,745.18 km) |
| Dayton to Ronnenberg | 4,259.83 mi (6,855.53 km) |
| Dayton to Rosbach vor der Hohe | 4,292.87 mi (6,908.70 km) |
| Dayton to Rosdorf | 4,296.90 mi (6,915.20 km) |
| Dayton to Rosenheim | 4,513.46 mi (7,263.71 km) |
| Dayton to Rosrath | 4,214.51 mi (6,782.60 km) |
| Dayton to Rossdorf | 4,310.13 mi (6,936.49 km) |
| Dayton to Rosstal | 4,408.17 mi (7,094.26 km) |
| Dayton to Rostock | 4,288.31 mi (6,901.37 km) |
| Dayton to Rotenburg an der Fulda | 4,307.86 mi (6,932.82 km) |
| Dayton to Roth | 4,421.70 mi (7,116.04 km) |
