| Gahanna to River Ridge (Louisiana) | 809.88 mi (1,303.37 km) |
| Gahanna to Riverbank (California) | 2,038.86 mi (3,281.24 km) |
| Gahanna to Riverdale (Georgia) | 454.53 mi (731.50 km) |
| Gahanna to Riverdale (Illinois) | 273.38 mi (439.97 km) |
| Gahanna to Riverside (California) | 1,938.96 mi (3,120.45 km) |
| Gahanna to Riverside (Ohio) | 68.74 mi (110.63 km) |
| Gahanna to Riverton (Utah) | 1,527.46 mi (2,458.20 km) |
| Gahanna to Riverton (Wyoming) | 1,332.54 mi (2,144.51 km) |
| Gahanna to Riverview (Florida) | 843.71 mi (1,357.82 km) |
| Gahanna to Riverview (Michigan) | 149.35 mi (240.36 km) |
| Gahanna to Riviera Beach (Florida) | 928.95 mi (1,495.01 km) |
| Gahanna to Riviera Beach (Maryland) | 342.60 mi (551.35 km) |
| Gahanna to Roanoke (Virginia) | 246.13 mi (396.10 km) |
| Gahanna to Roanoke Rapids (North Carolina) | 375.74 mi (604.69 km) |
| Gahanna to Robbinsdale (Minnesota) | 634.51 mi (1,021.14 km) |
