| Gourock to Gaeta | 1,311.66 mi (2,110.91 km) |
| Gourock to Gaggiano | 944.61 mi (1,520.20 km) |
| Gourock to Galatina | 1,508.05 mi (2,426.97 km) |
| Gourock to Galatone | 1,505.88 mi (2,423.48 km) |
| Gourock to Galbiate | 932.06 mi (1,500.01 km) |
| Gourock to Gallarate | 923.13 mi (1,485.63 km) |
| Gourock to Galliate | 930.97 mi (1,498.25 km) |
| Gourock to Gallipoli | 1,508.85 mi (2,428.26 km) |
| Gourock to Gambettola | 1,111.22 mi (1,788.34 km) |
| Gourock to Gambolo | 948.31 mi (1,526.16 km) |
| Gourock to Garbagnate Milanese | 936.12 mi (1,506.54 km) |
| Gourock to Gardone Val Trompia | 961.52 mi (1,547.41 km) |
| Gourock to Garlasco | 953.08 mi (1,533.84 km) |
| Gourock to Gassino Torinese | 928.45 mi (1,494.20 km) |
| Gourock to Gatteo | 1,113.63 mi (1,792.21 km) |
