| Gourock to Blue Springs (Missouri) | 4,026.96 mi (6,480.77 km) |
| Gourock to Bluffdale (Utah) | 4,535.29 mi (7,298.84 km) |
| Gourock to Bluffton (Indiana) | 3,611.97 mi (5,812.91 km) |
| Gourock to Bluffton (South Carolina) | 3,887.42 mi (6,256.20 km) |
| Gourock to Blythe (California) | 5,008.63 mi (8,060.61 km) |
| Gourock to Blytheville (Arkansas) | 4,030.08 mi (6,485.79 km) |
| Gourock to Boca Raton (Florida) | 4,166.34 mi (6,705.07 km) |
| Gourock to Boerne (Texas) | 4,681.94 mi (7,534.86 km) |
| Gourock to Bogalusa (Louisiana) | 4,301.24 mi (6,922.17 km) |
| Gourock to Boiling Springs (South Carolina) | 3,780.43 mi (6,084.01 km) |
| Gourock to Boise (Idaho) | 4,487.68 mi (7,222.22 km) |
| Gourock to Bolingbrook (Illinois) | 3,671.03 mi (5,907.94 km) |
| Gourock to Bolivar (Missouri) | 4,069.93 mi (6,549.92 km) |
| Gourock to Bon Air (Virginia) | 3,488.19 mi (5,613.70 km) |
| Gourock to Bonham (Texas) | 4,382.93 mi (7,053.64 km) |
