| Portsmouth to Grabels | 544.86 mi (876.87 km) |
| Portsmouth to Gradignan | 417.43 mi (671.79 km) |
| Portsmouth to Grand-Couronne | 136.50 mi (219.68 km) |
| Portsmouth to Grande-Synthe | 148.37 mi (238.79 km) |
| Portsmouth to Granville | 137.77 mi (221.71 km) |
| Portsmouth to Grasse | 619.15 mi (996.43 km) |
| Portsmouth to Graulhet | 507.54 mi (816.81 km) |
| Portsmouth to Gravelines | 140.64 mi (226.33 km) |
| Portsmouth to Grenade | 498.60 mi (802.41 km) |
| Portsmouth to Grenoble | 500.27 mi (805.10 km) |
| Portsmouth to Gretz-Armainvilliers | 222.27 mi (357.71 km) |
| Portsmouth to Grigny | 214.68 mi (345.49 km) |
| Portsmouth to Grigny | 449.35 mi (723.16 km) |
| Portsmouth to Groslay | 197.76 mi (318.27 km) |
| Portsmouth to Guebwiller | 423.38 mi (681.37 km) |
