| Giessen to Grevena | 951.37 mi (1,531.09 km) |
| Giessen to Ialysos | 1,374.47 mi (2,212.00 km) |
| Giessen to Ilion | 1,137.66 mi (1,830.89 km) |
| Giessen to Ilioupoli | 1,144.87 mi (1,842.49 km) |
| Giessen to Ioannina | 957.68 mi (1,541.24 km) |
| Giessen to Irakleio | 1,336.23 mi (2,150.45 km) |
| Giessen to Irakleio | 1,138.84 mi (1,832.78 km) |
| Giessen to Kaisariani | 1,143.16 mi (1,839.74 km) |
| Giessen to Kalamaria | 973.74 mi (1,567.09 km) |
| Giessen to Kalamata | 1,147.34 mi (1,846.46 km) |
| Giessen to Kallithea | 1,142.35 mi (1,838.44 km) |
| Giessen to Kalymnos | 1,303.38 mi (2,097.60 km) |
| Giessen to Kalyvia Thorikou | 1,155.77 mi (1,860.03 km) |
| Giessen to Kamatero | 1,136.56 mi (1,829.11 km) |
| Giessen to Karditsa | 1,006.85 mi (1,620.36 km) |
