| Gengenbach to Grevena | 875.64 mi (1,409.21 km) |
| Gengenbach to Ialysos | 1,312.26 mi (2,111.87 km) |
| Gengenbach to Ilion | 1,062.37 mi (1,709.71 km) |
| Gengenbach to Ilioupoli | 1,069.30 mi (1,720.87 km) |
| Gengenbach to Ioannina | 875.83 mi (1,409.51 km) |
| Gengenbach to Irakleio | 1,255.32 mi (2,020.24 km) |
| Gengenbach to Irakleio | 1,063.98 mi (1,712.31 km) |
| Gengenbach to Kaisariani | 1,067.82 mi (1,718.49 km) |
| Gengenbach to Kalamaria | 910.30 mi (1,464.98 km) |
| Gengenbach to Kalamata | 1,058.78 mi (1,703.95 km) |
| Gengenbach to Kallithea | 1,066.61 mi (1,716.54 km) |
| Gengenbach to Kalymnos | 1,238.75 mi (1,993.58 km) |
| Gengenbach to Kalyvia Thorikou | 1,080.53 mi (1,738.95 km) |
| Gengenbach to Kamatero | 1,061.47 mi (1,708.27 km) |
| Gengenbach to Karditsa | 929.42 mi (1,495.76 km) |
