| Hemel Hempstead to Giovinazzo | 1,089.73 mi (1,753.75 km) |
| Hemel Hempstead to Giugliano in Campania | 1,020.09 mi (1,641.68 km) |
| Hemel Hempstead to Giulianova | 915.79 mi (1,473.82 km) |
| Hemel Hempstead to Giussano | 607.15 mi (977.11 km) |
| Hemel Hempstead to Goito | 678.21 mi (1,091.47 km) |
| Hemel Hempstead to Gonzaga | 698.18 mi (1,123.62 km) |
| Hemel Hempstead to Gorgonzola | 621.61 mi (1,000.39 km) |
| Hemel Hempstead to Gorizia | 754.33 mi (1,213.98 km) |
| Hemel Hempstead to Gragnano | 1,043.25 mi (1,678.94 km) |
| Hemel Hempstead to Grammichele | 1,245.08 mi (2,003.76 km) |
| Hemel Hempstead to Granarolo del l'Emilia | 739.63 mi (1,190.31 km) |
| Hemel Hempstead to Gravina in Puglia | 1,100.04 mi (1,770.34 km) |
| Hemel Hempstead to Grezzana | 677.39 mi (1,090.15 km) |
| Hemel Hempstead to Gricignano d'Aversa | 1,015.99 mi (1,635.08 km) |
| Hemel Hempstead to Grosseto | 822.51 mi (1,323.70 km) |
