| Highlands Ranch to Grottaferrata | 5,592.37 mi (9,000.05 km) |
| Highlands Ranch to Grottaglie | 5,823.20 mi (9,371.54 km) |
| Highlands Ranch to Grottammare | 5,574.08 mi (8,970.62 km) |
| Highlands Ranch to Grugliasco | 5,251.36 mi (8,451.24 km) |
| Highlands Ranch to Grumo Appula | 5,772.81 mi (9,290.44 km) |
| Highlands Ranch to Grumo Nevano | 5,692.07 mi (9,160.51 km) |
| Highlands Ranch to Gualdo Tadino | 5,524.27 mi (8,890.45 km) |
| Highlands Ranch to Guardiagrele | 5,626.13 mi (9,054.39 km) |
| Highlands Ranch to Guastalla | 5,367.69 mi (8,638.47 km) |
| Highlands Ranch to Gubbio | 5,510.90 mi (8,868.94 km) |
| Highlands Ranch to Guspini | 5,553.82 mi (8,938.00 km) |
| Highlands Ranch to Gussago | 5,316.70 mi (8,556.40 km) |
| Highlands Ranch to Iesi | 5,525.62 mi (8,892.62 km) |
| Highlands Ranch to Iesolo | 5,405.33 mi (8,699.04 km) |
| Highlands Ranch to Iglesias | 5,560.42 mi (8,948.64 km) |
