| Harrow to Gaeta | 972.74 mi (1,565.48 km) |
| Harrow to Gaggiano | 604.71 mi (973.18 km) |
| Harrow to Galatina | 1,183.54 mi (1,904.73 km) |
| Harrow to Galatone | 1,180.87 mi (1,900.43 km) |
| Harrow to Galbiate | 596.26 mi (959.59 km) |
| Harrow to Gallarate | 583.47 mi (939.00 km) |
| Harrow to Galliate | 589.90 mi (949.35 km) |
| Harrow to Gallipoli | 1,183.10 mi (1,904.01 km) |
| Harrow to Gambettola | 780.23 mi (1,255.65 km) |
| Harrow to Gambolo | 606.87 mi (976.66 km) |
| Harrow to Garbagnate Milanese | 597.40 mi (961.42 km) |
| Harrow to Gardone Val Trompia | 629.29 mi (1,012.75 km) |
| Harrow to Garlasco | 611.59 mi (984.25 km) |
| Harrow to Gassino Torinese | 582.16 mi (936.89 km) |
| Harrow to Gatteo | 782.78 mi (1,259.76 km) |
