| Horb am Neckar to Grevena | 852.81 mi (1,372.47 km) |
| Horb am Neckar to Ialysos | 1,287.80 mi (2,072.51 km) |
| Horb am Neckar to Ilion | 1,039.70 mi (1,673.24 km) |
| Horb am Neckar to Ilioupoli | 1,046.69 mi (1,684.48 km) |
| Horb am Neckar to Ioannina | 854.07 mi (1,374.49 km) |
| Horb am Neckar to Irakleio | 1,233.79 mi (1,985.60 km) |
| Horb am Neckar to Irakleio | 1,041.24 mi (1,675.72 km) |
| Horb am Neckar to Kaisariani | 1,045.17 mi (1,682.04 km) |
| Horb am Neckar to Kalamaria | 885.63 mi (1,425.28 km) |
| Horb am Neckar to Kalamata | 1,038.52 mi (1,671.33 km) |
| Horb am Neckar to Kallithea | 1,044.02 mi (1,680.19 km) |
| Horb am Neckar to Kalymnos | 1,214.59 mi (1,954.69 km) |
| Horb am Neckar to Kalyvia Thorikou | 1,057.88 mi (1,702.49 km) |
| Horb am Neckar to Kamatero | 1,038.77 mi (1,671.73 km) |
| Horb am Neckar to Karditsa | 906.95 mi (1,459.60 km) |
