| Greenock to Roy (Utah) | 4,501.51 mi (7,244.48 km) |
| Greenock to Royal Kunia (Hawaii) | 6,867.30 mi (11,051.86 km) |
| Greenock to Royal Oak (Michigan) | 3,453.96 mi (5,558.61 km) |
| Greenock to Royal Palm Beach (Florida) | 4,155.11 mi (6,687.01 km) |
| Greenock to Royse City (Texas) | 4,422.52 mi (7,117.36 km) |
| Greenock to Ruskin (Florida) | 4,185.69 mi (6,736.22 km) |
| Greenock to Russellville (Alabama) | 4,026.21 mi (6,479.56 km) |
| Greenock to Russellville (Arkansas) | 4,184.44 mi (6,734.21 km) |
| Greenock to Ruston (Louisiana) | 4,312.24 mi (6,939.88 km) |
| Greenock to Rutherford (New Jersey) | 3,197.79 mi (5,146.34 km) |
| Greenock to Rutland (Vermont) | 3,025.20 mi (4,868.59 km) |
| Greenock to Sabana Grande (Puerto Rico) | 4,120.76 mi (6,631.73 km) |
| Greenock to Sachse (Texas) | 4,432.16 mi (7,132.87 km) |
| Greenock to Saco (Maine) | 2,933.46 mi (4,720.95 km) |
| Greenock to Sacramento (California) | 4,929.66 mi (7,933.52 km) |
