| Guadarrama to Giovinazzo | 1,081.49 mi (1,740.49 km) |
| Guadarrama to Giugliano in Campania | 954.73 mi (1,536.49 km) |
| Guadarrama to Giulianova | 939.56 mi (1,512.08 km) |
| Guadarrama to Giussano | 753.64 mi (1,212.86 km) |
| Guadarrama to Goito | 808.81 mi (1,301.65 km) |
| Guadarrama to Gonzaga | 809.75 mi (1,303.17 km) |
| Guadarrama to Gorgonzola | 757.51 mi (1,219.09 km) |
| Guadarrama to Gorizia | 958.99 mi (1,543.35 km) |
| Guadarrama to Gragnano | 972.93 mi (1,565.78 km) |
| Guadarrama to Grammichele | 1,032.07 mi (1,660.96 km) |
| Guadarrama to Granarolo del l'Emilia | 832.77 mi (1,340.21 km) |
| Guadarrama to Gravina in Puglia | 1,070.99 mi (1,723.59 km) |
| Guadarrama to Grezzana | 830.68 mi (1,336.85 km) |
| Guadarrama to Gricignano d'Aversa | 953.70 mi (1,534.83 km) |
| Guadarrama to Grosseto | 795.42 mi (1,280.11 km) |
