| Gahanna to Romeoville (Illinois) | 295.33 mi (475.29 km) |
| Gahanna to Romulus (Michigan) | 154.14 mi (248.07 km) |
| Gahanna to Ronkonkoma (New York) | 514.88 mi (828.62 km) |
| Gahanna to Roosevelt (New York) | 490.49 mi (789.37 km) |
| Gahanna to Rosamond (California) | 1,958.50 mi (3,151.90 km) |
| Gahanna to Rosaryville (Maryland) | 333.78 mi (537.16 km) |
| Gahanna to Roscoe (Illinois) | 359.70 mi (578.88 km) |
| Gahanna to Rose Hill (Virginia) | 318.86 mi (513.16 km) |
| Gahanna to Roseburg (Oregon) | 2,082.31 mi (3,351.15 km) |
| Gahanna to Rosedale (California) | 1,998.14 mi (3,215.70 km) |
| Gahanna to Rosedale (Maryland) | 341.32 mi (549.30 km) |
| Gahanna to Roselle (Illinois) | 303.92 mi (489.12 km) |
| Gahanna to Roselle (New Jersey) | 455.00 mi (732.26 km) |
| Gahanna to Roselle Park (New Jersey) | 454.69 mi (731.76 km) |
| Gahanna to Rosemead (California) | 1,971.85 mi (3,173.39 km) |
