| Portogruaro to Grottaferrata | 276.15 mi (444.41 km) |
| Portogruaro to Grottaglie | 430.33 mi (692.55 km) |
| Portogruaro to Grottammare | 199.63 mi (321.28 km) |
| Portogruaro to Grugliasco | 259.56 mi (417.72 km) |
| Portogruaro to Grumo Appula | 382.18 mi (615.05 km) |
| Portogruaro to Grumo Nevano | 342.74 mi (551.58 km) |
| Portogruaro to Gualdo Tadino | 176.21 mi (283.57 km) |
| Portogruaro to Guardiagrele | 256.94 mi (413.51 km) |
| Portogruaro to Guastalla | 121.04 mi (194.80 km) |
| Portogruaro to Gubbio | 168.64 mi (271.39 km) |
| Portogruaro to Guspini | 481.51 mi (774.92 km) |
| Portogruaro to Gussago | 130.12 mi (209.40 km) |
| Portogruaro to Iesi | 157.40 mi (253.31 km) |
| Portogruaro to Iesolo | 19.54 mi (31.44 km) |
| Portogruaro to Iglesias | 497.34 mi (800.39 km) |
