| Gourock to Grottaferrata | 1,253.38 mi (2,017.12 km) |
| Gourock to Grottaglie | 1,464.87 mi (2,357.48 km) |
| Gourock to Grottammare | 1,219.44 mi (1,962.50 km) |
| Gourock to Grugliasco | 925.63 mi (1,489.65 km) |
| Gourock to Grumo Appula | 1,415.32 mi (2,277.73 km) |
| Gourock to Grumo Nevano | 1,347.96 mi (2,169.33 km) |
| Gourock to Gualdo Tadino | 1,173.82 mi (1,889.09 km) |
| Gourock to Guardiagrele | 1,274.15 mi (2,050.54 km) |
| Gourock to Guastalla | 1,018.07 mi (1,638.42 km) |
| Gourock to Gubbio | 1,160.94 mi (1,868.36 km) |
| Gourock to Guspini | 1,290.08 mi (2,076.19 km) |
| Gourock to Gussago | 965.15 mi (1,553.26 km) |
| Gourock to Iesi | 1,171.04 mi (1,884.60 km) |
| Gourock to Iesolo | 1,043.91 mi (1,680.02 km) |
| Gourock to Iglesias | 1,301.62 mi (2,094.76 km) |
