| Dayton to Ratingen | 4,188.66 mi (6,741.00 km) |
| Dayton to Ratzeburg | 4,252.60 mi (6,843.90 km) |
| Dayton to Raubling | 4,514.66 mi (7,265.65 km) |
| Dayton to Rauenberg | 4,328.58 mi (6,966.17 km) |
| Dayton to Raunheim | 4,292.90 mi (6,908.75 km) |
| Dayton to Ravensburg | 4,416.79 mi (7,108.13 km) |
| Dayton to Recke | 4,186.50 mi (6,737.51 km) |
| Dayton to Recklinghausen | 4,191.21 mi (6,745.10 km) |
| Dayton to Regen | 4,510.10 mi (7,258.30 km) |
| Dayton to Regensburg | 4,468.15 mi (7,190.79 km) |
| Dayton to Regenstauf | 4,465.92 mi (7,187.21 km) |
| Dayton to Rehau | 4,420.41 mi (7,113.97 km) |
| Dayton to Rehburg-Loccum | 4,238.92 mi (6,821.88 km) |
| Dayton to Rehlingen-Siersburg | 4,245.84 mi (6,833.01 km) |
| Dayton to Reichelsheim | 4,318.33 mi (6,949.69 km) |
