| Duzce to Grottaferrata | 959.74 mi (1,544.55 km) |
| Duzce to Grottaglie | 718.66 mi (1,156.57 km) |
| Duzce to Grottammare | 899.72 mi (1,447.95 km) |
| Duzce to Grugliasco | 1,222.91 mi (1,968.08 km) |
| Duzce to Grumo Appula | 753.98 mi (1,213.41 km) |
| Duzce to Grumo Nevano | 880.97 mi (1,417.78 km) |
| Duzce to Gualdo Tadino | 955.28 mi (1,537.37 km) |
| Duzce to Guardiagrele | 879.95 mi (1,416.14 km) |
| Duzce to Guastalla | 1,071.79 mi (1,724.88 km) |
| Duzce to Gubbio | 966.68 mi (1,555.72 km) |
| Duzce to Guspini | 1,189.08 mi (1,913.64 km) |
| Duzce to Gussago | 1,103.94 mi (1,776.62 km) |
| Duzce to Iesi | 934.02 mi (1,503.15 km) |
| Duzce to Iesolo | 984.68 mi (1,584.69 km) |
| Duzce to Iglesias | 1,197.40 mi (1,927.04 km) |
