| Portishead to Grottaferrata | 988.75 mi (1,591.24 km) |
| Portishead to Grottaglie | 1,222.56 mi (1,967.52 km) |
| Portishead to Grottammare | 972.44 mi (1,564.99 km) |
| Portishead to Grugliasco | 648.95 mi (1,044.39 km) |
| Portishead to Grumo Appula | 1,171.80 mi (1,885.83 km) |
| Portishead to Grumo Nevano | 1,088.06 mi (1,751.07 km) |
| Portishead to Gualdo Tadino | 921.13 mi (1,482.42 km) |
| Portishead to Guardiagrele | 1,023.07 mi (1,646.47 km) |
| Portishead to Guastalla | 765.12 mi (1,231.35 km) |
| Portishead to Gubbio | 907.68 mi (1,460.78 km) |
| Portishead to Guspini | 990.57 mi (1,594.16 km) |
| Portishead to Gussago | 715.45 mi (1,151.41 km) |
| Portishead to Iesi | 924.27 mi (1,487.47 km) |
| Portishead to Iesolo | 814.02 mi (1,310.03 km) |
| Portishead to Iglesias | 1,000.97 mi (1,610.90 km) |
