| Staines-upon-Thames to Grottaferrata | 911.43 mi (1,466.81 km) |
| Staines-upon-Thames to Grottaglie | 1,138.80 mi (1,832.73 km) |
| Staines-upon-Thames to Grottammare | 889.22 mi (1,431.06 km) |
| Staines-upon-Thames to Grugliasco | 575.45 mi (926.10 km) |
| Staines-upon-Thames to Grumo Appula | 1,088.24 mi (1,751.35 km) |
| Staines-upon-Thames to Grumo Nevano | 1,009.31 mi (1,624.33 km) |
| Staines-upon-Thames to Gualdo Tadino | 839.43 mi (1,350.94 km) |
| Staines-upon-Thames to Guardiagrele | 941.24 mi (1,514.77 km) |
| Staines-upon-Thames to Guastalla | 682.78 mi (1,098.82 km) |
| Staines-upon-Thames to Gubbio | 826.11 mi (1,329.49 km) |
| Staines-upon-Thames to Guspini | 932.32 mi (1,500.42 km) |
| Staines-upon-Thames to Gussago | 631.80 mi (1,016.78 km) |
| Staines-upon-Thames to Iesi | 840.80 mi (1,353.14 km) |
| Staines-upon-Thames to Iesolo | 725.81 mi (1,168.07 km) |
| Staines-upon-Thames to Iglesias | 943.66 mi (1,518.68 km) |
