| Penarth to Grottaferrata | 1,000.73 mi (1,610.52 km) |
| Penarth to Grottaglie | 1,235.91 mi (1,989.00 km) |
| Penarth to Grottammare | 985.74 mi (1,586.40 km) |
| Penarth to Grugliasco | 660.41 mi (1,062.83 km) |
| Penarth to Grumo Appula | 1,185.12 mi (1,907.26 km) |
| Penarth to Grumo Nevano | 1,100.31 mi (1,770.78 km) |
| Penarth to Gualdo Tadino | 934.12 mi (1,503.32 km) |
| Penarth to Guardiagrele | 1,036.04 mi (1,667.34 km) |
| Penarth to Guastalla | 778.34 mi (1,252.62 km) |
| Penarth to Gubbio | 920.65 mi (1,481.64 km) |
| Penarth to Guspini | 998.59 mi (1,607.08 km) |
| Penarth to Gussago | 728.99 mi (1,173.20 km) |
| Penarth to Iesi | 937.65 mi (1,509.01 km) |
| Penarth to Iesolo | 828.56 mi (1,333.45 km) |
| Penarth to Iglesias | 1,008.80 mi (1,623.50 km) |
