| Greenock to Merrick (New York) | 3,184.87 mi (5,125.56 km) |
| Greenock to Merrifield (Virginia) | 3,410.78 mi (5,489.12 km) |
| Greenock to Merrillville (Indiana) | 3,655.66 mi (5,883.22 km) |
| Greenock to Merritt Island (Florida) | 4,085.82 mi (6,575.50 km) |
| Greenock to Mesa (Arizona) | 4,929.66 mi (7,933.52 km) |
| Greenock to Mesquite (Nevada) | 4,812.67 mi (7,745.24 km) |
| Greenock to Mesquite (Texas) | 4,443.92 mi (7,151.80 km) |
| Greenock to Metairie (Louisiana) | 4,357.16 mi (7,012.18 km) |
| Greenock to Methuen Town (Massachusetts) | 2,997.68 mi (4,824.31 km) |
| Greenock to Metuchen (New Jersey) | 3,220.79 mi (5,183.36 km) |
| Greenock to Mexico (Missouri) | 3,935.84 mi (6,334.12 km) |
| Greenock to Miami (Florida) | 4,204.30 mi (6,766.16 km) |
| Greenock to Miami (Oklahoma) | 4,161.55 mi (6,697.36 km) |
| Greenock to Miami Beach (Florida) | 4,199.78 mi (6,758.90 km) |
| Greenock to Miami Gardens (Florida) | 4,196.93 mi (6,754.30 km) |
