| Portimao to Grabels | 788.64 mi (1,269.19 km) |
| Portimao to Gradignan | 669.55 mi (1,077.54 km) |
| Portimao to Grand-Couronne | 969.68 mi (1,560.55 km) |
| Portimao to Grande-Synthe | 1,096.84 mi (1,765.20 km) |
| Portimao to Granville | 880.59 mi (1,417.18 km) |
| Portimao to Grasse | 927.82 mi (1,493.18 km) |
| Portimao to Graulhet | 717.19 mi (1,154.21 km) |
| Portimao to Gravelines | 1,091.10 mi (1,755.95 km) |
| Portimao to Grenade | 689.98 mi (1,110.42 km) |
| Portimao to Grenoble | 924.32 mi (1,487.55 km) |
| Portimao to Gretz-Armainvilliers | 981.56 mi (1,579.66 km) |
| Portimao to Grigny | 966.97 mi (1,556.18 km) |
| Portimao to Grigny | 903.50 mi (1,454.04 km) |
| Portimao to Groslay | 983.78 mi (1,583.23 km) |
| Portimao to Guebwiller | 1,090.14 mi (1,754.41 km) |
