| Harpenden to Grantham | 76.99 mi (123.90 km) |
| Harpenden to Gravesend | 40.38 mi (64.99 km) |
| Harpenden to Grays | 37.63 mi (60.56 km) |
| Harpenden to Greasley | 91.64 mi (147.48 km) |
| Harpenden to Great Baddow | 37.37 mi (60.14 km) |
| Harpenden to Great Bookham | 37.29 mi (60.01 km) |
| Harpenden to Great Cornard | 49.09 mi (79.01 km) |
| Harpenden to Great Driffield | 151.18 mi (243.31 km) |
| Harpenden to Great Dunmow | 30.72 mi (49.44 km) |
| Harpenden to Great Harwood | 160.83 mi (258.83 km) |
| Harpenden to Great Linford | 24.63 mi (39.63 km) |
| Harpenden to Great Missenden | 17.10 mi (27.51 km) |
| Harpenden to Great Sankey | 145.01 mi (233.37 km) |
| Harpenden to Great Wyrley | 91.12 mi (146.64 km) |
| Harpenden to Great Yarmouth | 103.59 mi (166.72 km) |
