| Portici to Granadilla de Abona | 1,953.98 mi (3,144.62 km) |
| Portici to Granollers | 628.27 mi (1,011.10 km) |
| Portici to Grinon | 954.67 mi (1,536.40 km) |
| Portici to Guadalajara | 915.33 mi (1,473.07 km) |
| Portici to Guadarrama | 963.00 mi (1,549.80 km) |
| Portici to Guadix | 966.70 mi (1,555.76 km) |
| Portici to Guardamar del Segura | 820.84 mi (1,321.01 km) |
| Portici to Guernica y Luno | 887.60 mi (1,428.45 km) |
| Portici to Guia de Isora | 1,960.04 mi (3,154.37 km) |
| Portici to Guillena | 1,112.82 mi (1,790.91 km) |
| Portici to Guimar | 1,937.50 mi (3,118.11 km) |
| Portici to Hellin | 865.69 mi (1,393.20 km) |
| Portici to Herencia | 939.10 mi (1,511.33 km) |
| Portici to Hernani | 852.23 mi (1,371.52 km) |
| Portici to Hoyo de Manzanares | 952.61 mi (1,533.09 km) |
