| Portsmouth to Genas | 448.41 mi (721.65 km) |
| Portsmouth to Gennevilliers | 198.69 mi (319.76 km) |
| Portsmouth to Gentilly | 205.79 mi (331.18 km) |
| Portsmouth to Gerzat | 395.07 mi (635.81 km) |
| Portsmouth to Gex | 449.29 mi (723.07 km) |
| Portsmouth to Gien | 272.20 mi (438.07 km) |
| Portsmouth to Gif-sur-Yvette | 204.43 mi (329.00 km) |
| Portsmouth to Gignac-la-Nerthe | 591.73 mi (952.30 km) |
| Portsmouth to Gisors | 165.06 mi (265.63 km) |
| Portsmouth to Givors | 449.78 mi (723.86 km) |
| Portsmouth to Golbey | 382.52 mi (615.60 km) |
| Portsmouth to Gonesse | 201.36 mi (324.05 km) |
| Portsmouth to Gonfreville-l'Orcher | 107.19 mi (172.50 km) |
| Portsmouth to Goussainville | 200.26 mi (322.29 km) |
| Portsmouth to Gouvieux | 191.56 mi (308.29 km) |
