| Greenock to Gavardo | 972.55 mi (1,565.17 km) |
| Greenock to Gavirate | 908.95 mi (1,462.81 km) |
| Greenock to Gavorrano | 1,137.19 mi (1,830.13 km) |
| Greenock to Gela | 1,575.97 mi (2,536.27 km) |
| Greenock to Gemona del Friuli | 1,018.69 mi (1,639.42 km) |
| Greenock to Genoa | 997.64 mi (1,605.55 km) |
| Greenock to Genzano di Roma | 1,257.33 mi (2,023.48 km) |
| Greenock to Gessate | 945.83 mi (1,522.17 km) |
| Greenock to Ghedi | 978.21 mi (1,574.28 km) |
| Greenock to Giarre | 1,560.46 mi (2,511.31 km) |
| Greenock to Giaveno | 919.99 mi (1,480.58 km) |
| Greenock to Giffoni Valle Piana | 1,377.97 mi (2,217.62 km) |
| Greenock to Ginosa | 1,444.14 mi (2,324.11 km) |
| Greenock to Gioia del Colle | 1,432.83 mi (2,305.91 km) |
| Greenock to Gioia Tauro | 1,538.69 mi (2,476.29 km) |
