| Greenock to Black Forest (Colorado) | 4,382.63 mi (7,053.16 km) |
| Greenock to Blackfoot (Idaho) | 4,397.92 mi (7,077.77 km) |
| Greenock to Blackhawk (California) | 4,986.37 mi (8,024.78 km) |
| Greenock to Blacksburg (Virginia) | 3,612.81 mi (5,814.26 km) |
| Greenock to Blackwells Mills (New Jersey) | 3,232.80 mi (5,202.69 km) |
| Greenock to Blaine (Minnesota) | 3,679.18 mi (5,921.07 km) |
| Greenock to Bloomingdale (Florida) | 4,170.37 mi (6,711.56 km) |
| Greenock to Bloomingdale (Illinois) | 3,659.66 mi (5,889.66 km) |
| Greenock to Bloomington (California) | 5,072.20 mi (8,162.91 km) |
| Greenock to Bloomington (Illinois) | 3,764.94 mi (6,059.09 km) |
| Greenock to Bloomington (Indiana) | 3,742.33 mi (6,022.70 km) |
| Greenock to Bloomington (Minnesota) | 3,699.63 mi (5,953.98 km) |
| Greenock to Bloomsburg (Pennsylvania) | 3,277.86 mi (5,275.20 km) |
| Greenock to Blue Ash (Ohio) | 3,659.30 mi (5,889.08 km) |
| Greenock to Blue Island (Illinois) | 3,659.49 mi (5,889.38 km) |
