| Radolfzell am Bodensee to Impruneta | 300.70 mi (483.92 km) |
| Radolfzell am Bodensee to Induno Olona | 130.28 mi (209.66 km) |
| Radolfzell am Bodensee to Inverigo | 138.69 mi (223.20 km) |
| Radolfzell am Bodensee to Inveruno | 153.25 mi (246.64 km) |
| Radolfzell am Bodensee to Inzago | 153.97 mi (247.79 km) |
| Radolfzell am Bodensee to Iseo | 152.32 mi (245.13 km) |
| Radolfzell am Bodensee to Isernia | 496.26 mi (798.66 km) |
| Radolfzell am Bodensee to Isola Capo Rizzuto | 730.09 mi (1,174.97 km) |
| Radolfzell am Bodensee to Isola del Liri | 475.31 mi (764.94 km) |
| Radolfzell am Bodensee to Isola della Scala | 196.03 mi (315.49 km) |
| Radolfzell am Bodensee to Isola Vicentina | 186.82 mi (300.65 km) |
| Radolfzell am Bodensee to Ispica | 814.52 mi (1,310.85 km) |
| Radolfzell am Bodensee to Istrana | 205.15 mi (330.16 km) |
| Radolfzell am Bodensee to Itri | 499.01 mi (803.09 km) |
| Radolfzell am Bodensee to Ittiri | 493.26 mi (793.82 km) |
