| Greenock to Grand Prairie (Texas) | 4,463.54 mi (7,183.37 km) |
| Greenock to Grand Rapids (Michigan) | 3,522.67 mi (5,669.19 km) |
| Greenock to Grand Rapids (Minnesota) | 3,588.74 mi (5,775.51 km) |
| Greenock to Grand Terrace (California) | 5,071.16 mi (8,161.24 km) |
| Greenock to Grandview (Missouri) | 4,044.65 mi (6,509.23 km) |
| Greenock to Grandview (Washington) | 4,441.53 mi (7,147.96 km) |
| Greenock to Grandville (Michigan) | 3,529.26 mi (5,679.80 km) |
| Greenock to Granger (Indiana) | 3,599.81 mi (5,793.34 km) |
| Greenock to Granite Bay (California) | 4,909.90 mi (7,901.72 km) |
| Greenock to Granite City (Illinois) | 3,895.40 mi (6,269.04 km) |
| Greenock to Grants Pass (Oregon) | 4,754.41 mi (7,651.49 km) |
| Greenock to Grantsville (Utah) | 4,545.80 mi (7,315.76 km) |
| Greenock to Grapevine (Texas) | 4,452.05 mi (7,164.89 km) |
| Greenock to Grass Valley (California) | 4,879.35 mi (7,852.56 km) |
| Greenock to Grayslake (Illinois) | 3,638.34 mi (5,855.34 km) |
