| Keystone to Brown Deer (Wisconsin) | 1,081.67 mi (1,740.78 km) |
| Keystone to Brownsburg (Indiana) | 836.88 mi (1,346.82 km) |
| Keystone to Brownsville (Florida) | 215.74 mi (347.20 km) |
| Keystone to Brownsville (Texas) | 925.37 mi (1,489.24 km) |
| Keystone to Brownwood (Texas) | 1,010.32 mi (1,625.95 km) |
| Keystone to Brunswick (Georgia) | 218.91 mi (352.31 km) |
| Keystone to Brunswick (Ohio) | 907.25 mi (1,460.08 km) |
| Keystone to Brushy Creek (Texas) | 925.94 mi (1,490.16 km) |
| Keystone to Bryan (Texas) | 847.22 mi (1,363.47 km) |
| Keystone to Bryant (Arkansas) | 734.98 mi (1,182.83 km) |
| Keystone to Bryn Mawr-Skyway (Washington) | 2,504.78 mi (4,031.05 km) |
| Keystone to Buckeye (Arizona) | 1,813.92 mi (2,919.22 km) |
| Keystone to Buckhall (Virginia) | 789.51 mi (1,270.59 km) |
| Keystone to Bucyrus (Ohio) | 875.96 mi (1,409.72 km) |
| Keystone to Buda (Texas) | 929.60 mi (1,496.04 km) |
