| Zagarolo to Grottaferrata | 8.88 mi (14.30 km) |
| Zagarolo to Grottaglie | 255.47 mi (411.13 km) |
| Zagarolo to Grottammare | 95.70 mi (154.01 km) |
| Zagarolo to Grugliasco | 345.48 mi (556.00 km) |
| Zagarolo to Grumo Appula | 208.10 mi (334.90 km) |
| Zagarolo to Grumo Nevano | 96.89 mi (155.93 km) |
| Zagarolo to Gualdo Tadino | 96.76 mi (155.73 km) |
| Zagarolo to Guardiagrele | 75.40 mi (121.34 km) |
| Zagarolo to Guastalla | 239.20 mi (384.95 km) |
| Zagarolo to Gubbio | 105.67 mi (170.06 km) |
| Zagarolo to Guspini | 271.39 mi (436.75 km) |
| Zagarolo to Gussago | 292.68 mi (471.02 km) |
| Zagarolo to Iesi | 118.59 mi (190.86 km) |
| Zagarolo to Iesolo | 255.80 mi (411.68 km) |
| Zagarolo to Iglesias | 284.82 mi (458.37 km) |
