| Greenock to Germantown (Wisconsin) | 3,597.50 mi (5,789.62 km) |
| Greenock to Gibsonton (Florida) | 4,177.55 mi (6,723.12 km) |
| Greenock to Gig Harbor (Washington) | 4,449.55 mi (7,160.86 km) |
| Greenock to Gilbert (Arizona) | 4,935.81 mi (7,943.41 km) |
| Greenock to Gillette (Wyoming) | 4,128.42 mi (6,644.05 km) |
| Greenock to Gilroy (California) | 5,024.89 mi (8,086.78 km) |
| Greenock to Gladeview (Florida) | 4,202.32 mi (6,762.98 km) |
| Greenock to Gladstone (Missouri) | 4,028.59 mi (6,483.38 km) |
| Greenock to Gladstone (Oregon) | 4,562.33 mi (7,342.36 km) |
| Greenock to Glasgow (Delaware) | 3,318.59 mi (5,340.75 km) |
| Greenock to Glasgow (Kentucky) | 3,829.93 mi (6,163.68 km) |
| Greenock to Glassboro (New Jersey) | 3,289.63 mi (5,294.14 km) |
| Greenock to Glassmanor (Maryland) | 3,403.66 mi (5,477.66 km) |
| Greenock to Glen Allen (Virginia) | 3,479.57 mi (5,599.83 km) |
| Greenock to Glen Burnie (Maryland) | 3,372.86 mi (5,428.09 km) |
