| Giffnock to Brownsburg (Indiana) | 3,723.96 mi (5,993.13 km) |
| Giffnock to Brownsville (Florida) | 4,222.36 mi (6,795.23 km) |
| Giffnock to Brownsville (Texas) | 4,867.40 mi (7,833.33 km) |
| Giffnock to Brownwood (Texas) | 4,607.58 mi (7,415.19 km) |
| Giffnock to Brunswick (Georgia) | 3,985.88 mi (6,414.65 km) |
| Giffnock to Brunswick (Ohio) | 3,486.51 mi (5,610.99 km) |
| Giffnock to Brushy Creek (Texas) | 4,628.64 mi (7,449.07 km) |
| Giffnock to Bryan (Texas) | 4,570.91 mi (7,356.17 km) |
| Giffnock to Bryant (Arkansas) | 4,216.47 mi (6,785.76 km) |
| Giffnock to Bryn Mawr-Skyway (Washington) | 4,450.78 mi (7,162.84 km) |
| Giffnock to Buckeye (Arizona) | 4,978.73 mi (8,012.49 km) |
| Giffnock to Buckhall (Virginia) | 3,445.80 mi (5,545.49 km) |
| Giffnock to Bucyrus (Ohio) | 3,550.56 mi (5,714.07 km) |
| Giffnock to Buda (Texas) | 4,656.60 mi (7,494.07 km) |
| Giffnock to Buena Park (California) | 5,123.15 mi (8,244.92 km) |
