| Clausthal-Zellerfeld to Impruneta | 562.75 mi (905.66 km) |
| Clausthal-Zellerfeld to Induno Olona | 417.06 mi (671.20 km) |
| Clausthal-Zellerfeld to Inverigo | 422.58 mi (680.08 km) |
| Clausthal-Zellerfeld to Inveruno | 439.71 mi (707.65 km) |
| Clausthal-Zellerfeld to Inzago | 435.07 mi (700.17 km) |
| Clausthal-Zellerfeld to Iseo | 424.87 mi (683.76 km) |
| Clausthal-Zellerfeld to Isernia | 728.49 mi (1,172.40 km) |
| Clausthal-Zellerfeld to Isola Capo Rizzuto | 945.26 mi (1,521.24 km) |
| Clausthal-Zellerfeld to Isola del Liri | 716.01 mi (1,152.31 km) |
| Clausthal-Zellerfeld to Isola della Scala | 452.63 mi (728.44 km) |
| Clausthal-Zellerfeld to Isola Vicentina | 429.42 mi (691.09 km) |
| Clausthal-Zellerfeld to Ispica | 1,061.62 mi (1,708.52 km) |
| Clausthal-Zellerfeld to Istrana | 430.50 mi (692.83 km) |
| Clausthal-Zellerfeld to Itri | 742.50 mi (1,194.94 km) |
| Clausthal-Zellerfeld to Ittiri | 778.74 mi (1,253.25 km) |
