| Boulogne-sur-Mer to Gaggiano | 502.09 mi (808.03 km) |
| Boulogne-sur-Mer to Galatina | 1,079.97 mi (1,738.04 km) |
| Boulogne-sur-Mer to Galatone | 1,077.30 mi (1,733.74 km) |
| Boulogne-sur-Mer to Galbiate | 493.01 mi (793.42 km) |
| Boulogne-sur-Mer to Gallarate | 480.77 mi (773.72 km) |
| Boulogne-sur-Mer to Galliate | 487.52 mi (784.58 km) |
| Boulogne-sur-Mer to Gallipoli | 1,079.53 mi (1,737.34 km) |
| Boulogne-sur-Mer to Gambettola | 676.74 mi (1,089.11 km) |
| Boulogne-sur-Mer to Gambolo | 504.60 mi (812.08 km) |
| Boulogne-sur-Mer to Garbagnate Milanese | 494.54 mi (795.89 km) |
| Boulogne-sur-Mer to Gardone Val Trompia | 525.80 mi (846.19 km) |
| Boulogne-sur-Mer to Garlasco | 509.34 mi (819.71 km) |
| Boulogne-sur-Mer to Gassino Torinese | 481.65 mi (775.14 km) |
| Boulogne-sur-Mer to Gatteo | 679.29 mi (1,093.21 km) |
| Boulogne-sur-Mer to Gavardo | 539.25 mi (867.83 km) |
