| Watford to Gavardo | 647.38 mi (1,041.85 km) |
| Watford to Gavirate | 576.42 mi (927.65 km) |
| Watford to Gavorrano | 801.01 mi (1,289.10 km) |
| Watford to Gela | 1,235.72 mi (1,988.70 km) |
| Watford to Gemona del Friuli | 715.50 mi (1,151.49 km) |
| Watford to Genoa | 659.45 mi (1,061.28 km) |
| Watford to Genzano di Roma | 923.42 mi (1,486.10 km) |
| Watford to Gessate | 615.14 mi (989.98 km) |
| Watford to Ghedi | 650.97 mi (1,047.63 km) |
| Watford to Giarre | 1,223.76 mi (1,969.45 km) |
| Watford to Giaveno | 578.41 mi (930.86 km) |
| Watford to Giffoni Valle Piana | 1,048.91 mi (1,688.05 km) |
| Watford to Ginosa | 1,121.46 mi (1,804.82 km) |
| Watford to Gioia del Colle | 1,112.24 mi (1,789.98 km) |
| Watford to Gioia Tauro | 1,205.81 mi (1,940.57 km) |
