| Guyancourt to Giugliano in Campania | 801.93 mi (1,290.59 km) |
| Guyancourt to Giulianova | 706.36 mi (1,136.78 km) |
| Guyancourt to Giussano | 396.39 mi (637.92 km) |
| Guyancourt to Goito | 471.90 mi (759.44 km) |
| Guyancourt to Gonzaga | 489.76 mi (788.19 km) |
| Guyancourt to Gorgonzola | 410.27 mi (660.27 km) |
| Guyancourt to Gorizia | 574.10 mi (923.92 km) |
| Guyancourt to Gragnano | 825.28 mi (1,328.16 km) |
| Guyancourt to Grammichele | 1,017.33 mi (1,637.23 km) |
| Guyancourt to Granarolo del l'Emilia | 531.16 mi (854.82 km) |
| Guyancourt to Gravina in Puglia | 890.06 mi (1,432.42 km) |
| Guyancourt to Grezzana | 476.22 mi (766.40 km) |
| Guyancourt to Gricignano d'Aversa | 798.08 mi (1,284.39 km) |
| Guyancourt to Grosseto | 600.38 mi (966.21 km) |
| Guyancourt to Grottaferrata | 704.66 mi (1,134.04 km) |
