| Gladbeck to Impruneta | 579.80 mi (933.11 km) |
| Gladbeck to Induno Olona | 404.01 mi (650.20 km) |
| Gladbeck to Inverigo | 415.87 mi (669.29 km) |
| Gladbeck to Inveruno | 426.76 mi (686.80 km) |
| Gladbeck to Inzago | 432.40 mi (695.87 km) |
| Gladbeck to Iseo | 431.78 mi (694.88 km) |
| Gladbeck to Isernia | 769.31 mi (1,238.08 km) |
| Gladbeck to Isola Capo Rizzuto | 998.59 mi (1,607.07 km) |
| Gladbeck to Isola del Liri | 750.89 mi (1,208.44 km) |
| Gladbeck to Isola della Scala | 472.80 mi (760.90 km) |
| Gladbeck to Isola Vicentina | 458.08 mi (737.21 km) |
| Gladbeck to Ispica | 1,092.91 mi (1,758.87 km) |
| Gladbeck to Istrana | 468.99 mi (754.76 km) |
| Gladbeck to Itri | 775.53 mi (1,248.10 km) |
| Gladbeck to Ittiri | 761.55 mi (1,225.59 km) |
