| Piraeus to Gavirate | 939.88 mi (1,512.60 km) |
| Piraeus to Gavorrano | 752.00 mi (1,210.22 km) |
| Piraeus to Gela | 518.38 mi (834.25 km) |
| Piraeus to Gemona del Friuli | 787.60 mi (1,267.53 km) |
| Piraeus to Genoa | 884.20 mi (1,422.99 km) |
| Piraeus to Genzano di Roma | 636.07 mi (1,023.65 km) |
| Piraeus to Gessate | 899.57 mi (1,447.71 km) |
| Piraeus to Ghedi | 859.22 mi (1,382.79 km) |
| Piraeus to Giarre | 461.89 mi (743.35 km) |
| Piraeus to Giaveno | 972.94 mi (1,565.80 km) |
| Piraeus to Giffoni Valle Piana | 503.29 mi (809.97 km) |
| Piraeus to Ginosa | 409.10 mi (658.39 km) |
| Piraeus to Gioia del Colle | 409.16 mi (658.48 km) |
| Piraeus to Gioia Tauro | 421.94 mi (679.05 km) |
| Piraeus to Giovinazzo | 433.80 mi (698.13 km) |
