| Gahanna to Red Bank (New Jersey) | 464.66 mi (747.79 km) |
| Gahanna to Red Bank (Tennessee) | 364.64 mi (586.84 km) |
| Gahanna to Red Bluff (California) | 2,063.76 mi (3,321.30 km) |
| Gahanna to Red Hill (South Carolina) | 481.15 mi (774.34 km) |
| Gahanna to Red Oak (Texas) | 931.13 mi (1,498.51 km) |
| Gahanna to Red Wing (Minnesota) | 588.31 mi (946.80 km) |
| Gahanna to Redan (Georgia) | 440.19 mi (708.42 km) |
| Gahanna to Redding (California) | 2,064.24 mi (3,322.08 km) |
| Gahanna to Redland (Maryland) | 310.57 mi (499.81 km) |
| Gahanna to Redlands (California) | 1,924.12 mi (3,096.58 km) |
| Gahanna to Redmond (Oregon) | 1,966.53 mi (3,164.82 km) |
| Gahanna to Redmond (Washington) | 2,002.60 mi (3,222.87 km) |
| Gahanna to Redondo Beach (California) | 1,993.03 mi (3,207.47 km) |
| Gahanna to Redwood City (California) | 2,110.50 mi (3,396.52 km) |
| Gahanna to Reedley (California) | 1,983.40 mi (3,191.97 km) |
