| Boulder to Grottaferrata | 5,577.54 mi (8,976.18 km) |
| Boulder to Grottaglie | 5,807.31 mi (9,345.96 km) |
| Boulder to Grottammare | 5,558.39 mi (8,945.36 km) |
| Boulder to Grugliasco | 5,236.69 mi (8,427.64 km) |
| Boulder to Grumo Appula | 5,756.98 mi (9,264.96 km) |
| Boulder to Grumo Nevano | 5,677.07 mi (9,136.36 km) |
| Boulder to Gualdo Tadino | 5,508.81 mi (8,865.58 km) |
| Boulder to Guardiagrele | 5,610.64 mi (9,029.46 km) |
| Boulder to Guastalla | 5,352.19 mi (8,613.51 km) |
| Boulder to Gubbio | 5,495.47 mi (8,844.10 km) |
| Boulder to Guspini | 5,541.24 mi (8,917.76 km) |
| Boulder to Gussago | 5,301.06 mi (8,531.22 km) |
| Boulder to Iesi | 5,509.90 mi (8,867.33 km) |
| Boulder to Iesolo | 5,388.99 mi (8,672.74 km) |
| Boulder to Iglesias | 5,547.97 mi (8,928.60 km) |
