| Harpenden to Gavardo | 652.58 mi (1,050.22 km) |
| Harpenden to Gavirate | 582.39 mi (937.26 km) |
| Harpenden to Gavorrano | 807.60 mi (1,299.70 km) |
| Harpenden to Gela | 1,243.00 mi (2,000.42 km) |
| Harpenden to Gemona del Friuli | 718.83 mi (1,156.84 km) |
| Harpenden to Genoa | 666.26 mi (1,072.24 km) |
| Harpenden to Genzano di Roma | 929.77 mi (1,496.32 km) |
| Harpenden to Gessate | 620.92 mi (999.28 km) |
| Harpenden to Ghedi | 656.39 mi (1,056.36 km) |
| Harpenden to Giarre | 1,230.54 mi (1,980.36 km) |
| Harpenden to Giaveno | 585.76 mi (942.69 km) |
| Harpenden to Giffoni Valle Piana | 1,054.77 mi (1,697.48 km) |
| Harpenden to Ginosa | 1,126.73 mi (1,813.30 km) |
| Harpenden to Gioia del Colle | 1,117.32 mi (1,798.15 km) |
| Harpenden to Gioia Tauro | 1,212.13 mi (1,950.74 km) |
