| Gahanna to Troy (Michigan) | 177.25 mi (285.25 km) |
| Gahanna to Troy (Missouri) | 438.20 mi (705.21 km) |
| Gahanna to Troy (New York) | 511.51 mi (823.19 km) |
| Gahanna to Troy (Ohio) | 71.69 mi (115.37 km) |
| Gahanna to Truckee (California) | 1,970.31 mi (3,170.91 km) |
| Gahanna to Trujillo Alto (Puerto Rico) | 1,802.33 mi (2,900.58 km) |
| Gahanna to Trumbull Center (Connecticut) | 514.20 mi (827.52 km) |
| Gahanna to Trussville (Alabama) | 486.57 mi (783.05 km) |
| Gahanna to Tualatin (Oregon) | 2,038.45 mi (3,280.56 km) |
| Gahanna to Tuckahoe (Virginia) | 330.24 mi (531.46 km) |
| Gahanna to Tucker (Georgia) | 433.44 mi (697.55 km) |
| Gahanna to Tucson (Arizona) | 1,647.82 mi (2,651.91 km) |
| Gahanna to Tucson Estates (Arizona) | 1,659.93 mi (2,671.41 km) |
| Gahanna to Tucson Mountains (Arizona) | 1,654.14 mi (2,662.08 km) |
| Gahanna to Tukwila (Washington) | 2,009.77 mi (3,234.41 km) |
