| Gourock to Glyka Nera | 1,810.93 mi (2,914.42 km) |
| Gourock to Grevena | 1,616.99 mi (2,602.30 km) |
| Gourock to Ialysos | 2,042.06 mi (3,286.39 km) |
| Gourock to Ilion | 1,803.74 mi (2,902.85 km) |
| Gourock to Ilioupoli | 1,810.89 mi (2,914.34 km) |
| Gourock to Ioannina | 1,621.13 mi (2,608.95 km) |
| Gourock to Irakleio | 2,000.73 mi (3,219.87 km) |
| Gourock to Irakleio | 1,805.03 mi (2,904.92 km) |
| Gourock to Kaisariani | 1,809.24 mi (2,911.69 km) |
| Gourock to Kalamaria | 1,641.38 mi (2,641.54 km) |
| Gourock to Kalamata | 1,807.73 mi (2,909.26 km) |
| Gourock to Kallithea | 1,808.32 mi (2,910.21 km) |
| Gourock to Kalymnos | 1,971.05 mi (3,172.10 km) |
| Gourock to Kalyvia Thorikou | 1,821.89 mi (2,932.06 km) |
| Gourock to Kamatero | 1,802.69 mi (2,901.15 km) |
