| Gahanna to Trezzo sull'Adda | 4,426.76 mi (7,124.18 km) |
| Gahanna to Tricase | 5,018.58 mi (8,076.62 km) |
| Gahanna to Trieste | 4,597.73 mi (7,399.33 km) |
| Gahanna to Triggiano | 4,910.44 mi (7,902.60 km) |
| Gahanna to Trinitapoli | 4,864.73 mi (7,829.03 km) |
| Gahanna to Trissino | 4,503.86 mi (7,248.27 km) |
| Gahanna to Triuggio | 4,414.25 mi (7,104.04 km) |
| Gahanna to Trofarello | 4,375.11 mi (7,041.05 km) |
| Gahanna to Troina | 4,948.07 mi (7,963.15 km) |
| Gahanna to Turin | 4,369.30 mi (7,031.71 km) |
| Gahanna to Udine | 4,560.26 mi (7,339.03 km) |
| Gahanna to Ugento | 5,010.23 mi (8,063.19 km) |
| Gahanna to Umbertide | 4,629.88 mi (7,451.07 km) |
| Gahanna to Urbino | 4,626.04 mi (7,444.89 km) |
| Gahanna to Urgnano | 4,434.38 mi (7,136.44 km) |
