| Gahanna to Rodgau | 4,246.44 mi (6,833.98 km) |
| Gahanna to Roding | 4,415.13 mi (7,105.47 km) |
| Gahanna to Rodinghausen | 4,156.84 mi (6,689.79 km) |
| Gahanna to Roetgen | 4,121.54 mi (6,632.98 km) |
| Gahanna to Rommerskirchen | 4,128.28 mi (6,643.82 km) |
| Gahanna to Ronnenberg | 4,198.37 mi (6,756.62 km) |
| Gahanna to Rosbach vor der Hohe | 4,229.86 mi (6,807.30 km) |
| Gahanna to Rosdorf | 4,234.95 mi (6,815.49 km) |
| Gahanna to Rosenheim | 4,449.79 mi (7,161.25 km) |
| Gahanna to Rosrath | 4,151.55 mi (6,681.28 km) |
| Gahanna to Rossdorf | 4,246.86 mi (6,834.66 km) |
| Gahanna to Rosstal | 4,345.11 mi (6,992.78 km) |
| Gahanna to Rostock | 4,228.66 mi (6,805.38 km) |
| Gahanna to Rotenburg an der Fulda | 4,245.53 mi (6,832.52 km) |
| Gahanna to Roth | 4,358.60 mi (7,014.50 km) |
