| Gahanna to Tacoma (Washington) | 2,018.24 mi (3,248.05 km) |
| Gahanna to Tahlequah (Oklahoma) | 717.63 mi (1,154.92 km) |
| Gahanna to Takoma Park (Maryland) | 320.61 mi (515.97 km) |
| Gahanna to Talladega (Alabama) | 489.31 mi (787.47 km) |
| Gahanna to Tallahassee (Florida) | 665.83 mi (1,071.54 km) |
| Gahanna to Tallmadge (Ohio) | 106.15 mi (170.84 km) |
| Gahanna to Tamalpais-Homestead Valley (California) | 2,119.31 mi (3,410.71 km) |
| Gahanna to Tamarac (Florida) | 966.57 mi (1,555.55 km) |
| Gahanna to Tamiami (Florida) | 996.10 mi (1,603.07 km) |
| Gahanna to Tampa (Florida) | 831.58 mi (1,338.29 km) |
| Gahanna to Tanaina (Alaska) | 3,089.45 mi (4,971.99 km) |
| Gahanna to Tanque Verde (Arizona) | 1,637.19 mi (2,634.80 km) |
| Gahanna to Tarboro (North Carolina) | 405.60 mi (652.75 km) |
| Gahanna to Tarpon Springs (Florida) | 820.56 mi (1,320.56 km) |
| Gahanna to Tarrytown (New York) | 477.56 mi (768.55 km) |
