| Harpenden to Genas | 485.77 mi (781.78 km) |
| Harpenden to Gennevilliers | 230.99 mi (371.74 km) |
| Harpenden to Gentilly | 239.21 mi (384.98 km) |
| Harpenden to Gerzat | 443.37 mi (713.53 km) |
| Harpenden to Gex | 476.85 mi (767.42 km) |
| Harpenden to Gien | 314.05 mi (505.42 km) |
| Harpenden to Gif-sur-Yvette | 241.63 mi (388.87 km) |
| Harpenden to Gignac-la-Nerthe | 637.16 mi (1,025.41 km) |
| Harpenden to Gisors | 198.62 mi (319.65 km) |
| Harpenden to Givors | 489.24 mi (787.35 km) |
| Harpenden to Golbey | 391.53 mi (630.11 km) |
| Harpenden to Gonesse | 231.17 mi (372.03 km) |
| Harpenden to Gonfreville-l'Orcher | 161.80 mi (260.39 km) |
| Harpenden to Goussainville | 229.12 mi (368.73 km) |
| Harpenden to Gouvieux | 218.63 mi (351.85 km) |
