| Cities | Distance |
|---|---|
| Harpenden to Glen Parva | 63.24 mi (101.77 km) |
| Harpenden to Glenfield | 67.87 mi (109.23 km) |
| Harpenden to Glenrothes | 323.61 mi (520.80 km) |
| Harpenden to Glossop | 130.75 mi (210.42 km) |
| Harpenden to Gloucester | 80.83 mi (130.08 km) |
| Harpenden to Godalming | 45.42 mi (73.10 km) |
| Harpenden to Golborne | 148.18 mi (238.47 km) |
| Harpenden to Goodmayes | 26.59 mi (42.79 km) |
| Harpenden to Goole | 131.80 mi (212.10 km) |
| Harpenden to Gorleston-on-Sea | 102.33 mi (164.69 km) |
| Harpenden to Gornalwood | 89.51 mi (144.05 km) |
| Harpenden to Gosforth | 226.49 mi (364.50 km) |
| Harpenden to Gosport | 78.13 mi (125.74 km) |
| Harpenden to Gourock | 338.57 mi (544.88 km) |
| Harpenden to Grangemouth | 320.44 mi (515.69 km) |