| Grenchen to Imola | 285.83 mi (460.01 km) |
| Grenchen to Impruneta | 305.91 mi (492.31 km) |
| Grenchen to Induno Olona | 115.09 mi (185.22 km) |
| Grenchen to Inverigo | 132.82 mi (213.76 km) |
| Grenchen to Inveruno | 134.83 mi (216.99 km) |
| Grenchen to Inzago | 151.69 mi (244.12 km) |
| Grenchen to Iseo | 164.97 mi (265.49 km) |
| Grenchen to Isernia | 512.62 mi (824.98 km) |
| Grenchen to Isola Capo Rizzuto | 749.23 mi (1,205.77 km) |
| Grenchen to Isola del Liri | 487.37 mi (784.35 km) |
| Grenchen to Isola della Scala | 217.83 mi (350.56 km) |
| Grenchen to Isola Vicentina | 221.02 mi (355.69 km) |
| Grenchen to Ispica | 814.91 mi (1,311.47 km) |
| Grenchen to Istrana | 246.94 mi (397.41 km) |
| Grenchen to Itri | 508.45 mi (818.27 km) |
