| Hertford to Giovinazzo | 1,077.92 mi (1,734.75 km) |
| Hertford to Giugliano in Campania | 1,009.65 mi (1,624.88 km) |
| Hertford to Giulianova | 904.39 mi (1,455.47 km) |
| Hertford to Giussano | 596.38 mi (959.78 km) |
| Hertford to Goito | 666.83 mi (1,073.16 km) |
| Hertford to Gonzaga | 686.98 mi (1,105.58 km) |
| Hertford to Gorgonzola | 610.88 mi (983.11 km) |
| Hertford to Gorizia | 740.82 mi (1,192.24 km) |
| Hertford to Gragnano | 1,032.76 mi (1,662.07 km) |
| Hertford to Grammichele | 1,236.22 mi (1,989.50 km) |
| Hertford to Granarolo del l'Emilia | 728.35 mi (1,172.17 km) |
| Hertford to Gravina in Puglia | 1,088.54 mi (1,751.83 km) |
| Hertford to Grezzana | 665.55 mi (1,071.09 km) |
| Hertford to Gricignano d'Aversa | 1,005.52 mi (1,618.23 km) |
| Hertford to Grosseto | 812.84 mi (1,308.13 km) |
