| Gourock to Granada | 1,298.51 mi (2,089.75 km) |
| Gourock to Granadilla de Abona | 2,009.55 mi (3,234.05 km) |
| Gourock to Granollers | 1,041.31 mi (1,675.83 km) |
| Gourock to Grinon | 1,088.22 mi (1,751.32 km) |
| Gourock to Guadalajara | 1,061.15 mi (1,707.76 km) |
| Gourock to Guadarrama | 1,056.33 mi (1,700.00 km) |
| Gourock to Guadix | 1,291.23 mi (2,078.04 km) |
| Gourock to Guardamar del Segura | 1,249.20 mi (2,010.39 km) |
| Gourock to Guernica y Luno | 878.32 mi (1,413.51 km) |
| Gourock to Guia de Isora | 2,006.03 mi (3,228.40 km) |
| Gourock to Guillena | 1,274.02 mi (2,050.34 km) |
| Gourock to Guimar | 1,993.76 mi (3,208.64 km) |
| Gourock to Hellin | 1,213.41 mi (1,952.80 km) |
| Gourock to Herencia | 1,148.00 mi (1,847.52 km) |
| Gourock to Hernani | 885.64 mi (1,425.30 km) |
