| Porsgrunn to Giovinazzo | 1,275.06 mi (2,052.02 km) |
| Porsgrunn to Giugliano in Campania | 1,271.35 mi (2,046.05 km) |
| Porsgrunn to Giulianova | 1,145.16 mi (1,842.95 km) |
| Porsgrunn to Giussano | 927.15 mi (1,492.11 km) |
| Porsgrunn to Goito | 958.85 mi (1,543.12 km) |
| Porsgrunn to Gonzaga | 979.84 mi (1,576.91 km) |
| Porsgrunn to Gorgonzola | 938.53 mi (1,510.43 km) |
| Porsgrunn to Gorizia | 925.10 mi (1,488.80 km) |
| Porsgrunn to Gragnano | 1,289.72 mi (2,075.60 km) |
| Porsgrunn to Grammichele | 1,529.15 mi (2,460.93 km) |
| Porsgrunn to Granarolo del l'Emilia | 1,009.04 mi (1,623.89 km) |
| Porsgrunn to Gravina in Puglia | 1,297.43 mi (2,088.01 km) |
| Porsgrunn to Grezzana | 941.17 mi (1,514.66 km) |
| Porsgrunn to Gricignano d'Aversa | 1,266.61 mi (2,038.40 km) |
| Porsgrunn to Grosseto | 1,131.16 mi (1,820.42 km) |
