| Gronau to Impruneta | 620.39 mi (998.41 km) |
| Gronau to Induno Olona | 447.00 mi (719.37 km) |
| Gronau to Inverigo | 458.35 mi (737.65 km) |
| Gronau to Inveruno | 469.84 mi (756.13 km) |
| Gronau to Inzago | 474.57 mi (763.74 km) |
| Gronau to Iseo | 472.91 mi (761.07 km) |
| Gronau to Isernia | 807.01 mi (1,298.76 km) |
| Gronau to Isola Capo Rizzuto | 1,034.52 mi (1,664.91 km) |
| Gronau to Isola del Liri | 789.50 mi (1,270.57 km) |
| Gronau to Isola della Scala | 512.49 mi (824.78 km) |
| Gronau to Isola Vicentina | 496.45 mi (798.97 km) |
| Gronau to Ispica | 1,132.60 mi (1,822.75 km) |
| Gronau to Istrana | 505.86 mi (814.10 km) |
| Gronau to Itri | 814.47 mi (1,310.77 km) |
| Gronau to Ittiri | 805.58 mi (1,296.46 km) |
