| Trowbridge to Imola | 803.21 mi (1,292.64 km) |
| Trowbridge to Impruneta | 818.15 mi (1,316.68 km) |
| Trowbridge to Induno Olona | 629.39 mi (1,012.90 km) |
| Trowbridge to Inverigo | 648.64 mi (1,043.89 km) |
| Trowbridge to Inveruno | 645.29 mi (1,038.50 km) |
| Trowbridge to Inzago | 667.42 mi (1,074.11 km) |
| Trowbridge to Iseo | 682.91 mi (1,099.03 km) |
| Trowbridge to Isernia | 1,027.13 mi (1,653.01 km) |
| Trowbridge to Isola Capo Rizzuto | 1,263.51 mi (2,033.43 km) |
| Trowbridge to Isola del Liri | 999.69 mi (1,608.84 km) |
| Trowbridge to Isola della Scala | 735.83 mi (1,184.21 km) |
| Trowbridge to Isola Vicentina | 736.99 mi (1,186.07 km) |
| Trowbridge to Ispica | 1,308.87 mi (2,106.42 km) |
| Trowbridge to Istrana | 760.15 mi (1,223.34 km) |
| Trowbridge to Itri | 1,018.55 mi (1,639.19 km) |
