| Gummersbach to Grevena | 1,007.52 mi (1,621.44 km) |
| Gummersbach to Ialysos | 1,431.51 mi (2,303.79 km) |
| Gummersbach to Ilion | 1,193.95 mi (1,921.48 km) |
| Gummersbach to Ilioupoli | 1,201.15 mi (1,933.06 km) |
| Gummersbach to Ioannina | 1,013.30 mi (1,630.75 km) |
| Gummersbach to Irakleio | 1,392.17 mi (2,240.47 km) |
| Gummersbach to Irakleio | 1,195.16 mi (1,923.42 km) |
| Gummersbach to Kaisariani | 1,199.45 mi (1,930.33 km) |
| Gummersbach to Kalamaria | 1,030.62 mi (1,658.63 km) |
| Gummersbach to Kalamata | 1,202.39 mi (1,935.06 km) |
| Gummersbach to Kallithea | 1,198.61 mi (1,928.98 km) |
| Gummersbach to Kalymnos | 1,360.32 mi (2,189.23 km) |
| Gummersbach to Kalyvia Thorikou | 1,212.08 mi (1,950.65 km) |
| Gummersbach to Kamatero | 1,192.86 mi (1,919.73 km) |
| Gummersbach to Karditsa | 1,062.90 mi (1,710.56 km) |
