| Niagara Falls to Giovinazzo | 4,608.97 mi (7,417.43 km) |
| Niagara Falls to Giugliano in Campania | 4,516.91 mi (7,269.26 km) |
| Niagara Falls to Giulianova | 4,432.39 mi (7,133.25 km) |
| Niagara Falls to Giussano | 4,124.16 mi (6,637.19 km) |
| Niagara Falls to Goito | 4,200.06 mi (6,759.35 km) |
| Niagara Falls to Gonzaga | 4,217.56 mi (6,787.51 km) |
| Niagara Falls to Gorgonzola | 4,137.81 mi (6,659.16 km) |
| Niagara Falls to Gorizia | 4,292.34 mi (6,907.85 km) |
| Niagara Falls to Gragnano | 4,540.07 mi (7,306.54 km) |
| Niagara Falls to Grammichele | 4,691.75 mi (7,550.64 km) |
| Niagara Falls to Granarolo del l'Emilia | 4,258.75 mi (6,853.79 km) |
| Niagara Falls to Gravina in Puglia | 4,614.15 mi (7,425.76 km) |
| Niagara Falls to Grezzana | 4,204.17 mi (6,765.96 km) |
| Niagara Falls to Gricignano d'Aversa | 4,513.58 mi (7,263.91 km) |
| Niagara Falls to Grosseto | 4,313.59 mi (6,942.05 km) |
