| Gloucester to Gaeta | 1,047.34 mi (1,685.53 km) |
| Gloucester to Gaggiano | 680.14 mi (1,094.58 km) |
| Gloucester to Galatina | 1,262.17 mi (2,031.27 km) |
| Gloucester to Galatone | 1,259.39 mi (2,026.79 km) |
| Gloucester to Galbiate | 673.36 mi (1,083.68 km) |
| Gloucester to Gallarate | 659.12 mi (1,060.75 km) |
| Gloucester to Galliate | 664.86 mi (1,069.99 km) |
| Gloucester to Gallipoli | 1,261.44 mi (2,030.09 km) |
| Gloucester to Gambettola | 858.10 mi (1,380.99 km) |
| Gloucester to Gambolo | 681.56 mi (1,096.87 km) |
| Gloucester to Garbagnate Milanese | 673.38 mi (1,083.70 km) |
| Gloucester to Gardone Val Trompia | 707.38 mi (1,138.42 km) |
| Gloucester to Garlasco | 686.23 mi (1,104.38 km) |
| Gloucester to Gassino Torinese | 654.03 mi (1,052.56 km) |
| Gloucester to Gatteo | 860.70 mi (1,385.16 km) |
