| Gahanna to Imola | 4,563.84 mi (7,344.80 km) |
| Gahanna to Impruneta | 4,570.01 mi (7,354.72 km) |
| Gahanna to Induno Olona | 4,389.82 mi (7,064.73 km) |
| Gahanna to Inverigo | 4,409.78 mi (7,096.86 km) |
| Gahanna to Inveruno | 4,402.47 mi (7,085.09 km) |
| Gahanna to Inzago | 4,428.00 mi (7,126.17 km) |
| Gahanna to Iseo | 4,446.85 mi (7,156.51 km) |
| Gahanna to Isernia | 4,776.62 mi (7,687.23 km) |
| Gahanna to Isola Capo Rizzuto | 5,006.43 mi (8,057.07 km) |
| Gahanna to Isola del Liri | 4,745.49 mi (7,637.13 km) |
| Gahanna to Isola della Scala | 4,500.43 mi (7,242.74 km) |
| Gahanna to Isola Vicentina | 4,504.76 mi (7,249.72 km) |
| Gahanna to Ispica | 5,002.87 mi (8,051.34 km) |
| Gahanna to Istrana | 4,529.24 mi (7,289.11 km) |
| Gahanna to Itri | 4,759.63 mi (7,659.89 km) |
