| Rockford to Baraboo (Wisconsin) | 90.29 mi (145.30 km) |
| Rockford to Barberton (Ohio) | 394.67 mi (635.16 km) |
| Rockford to Bardstown (Kentucky) | 361.36 mi (581.56 km) |
| Rockford to Barrington (Illinois) | 48.48 mi (78.02 km) |
| Rockford to Barstow (California) | 1,587.27 mi (2,554.47 km) |
| Rockford to Bartlesville (Oklahoma) | 529.01 mi (851.37 km) |
| Rockford to Bartlett (Illinois) | 47.97 mi (77.19 km) |
| Rockford to Bartlett (Tennessee) | 487.14 mi (783.98 km) |
| Rockford to Bartow (Florida) | 1,073.15 mi (1,727.06 km) |
| Rockford to Batavia (Illinois) | 47.98 mi (77.21 km) |
| Rockford to Batavia (New York) | 555.24 mi (893.58 km) |
| Rockford to Batesville (Arkansas) | 468.98 mi (754.75 km) |
| Rockford to Baton Rouge (Louisiana) | 824.50 mi (1,326.91 km) |
| Rockford to Battle Creek (Michigan) | 196.02 mi (315.46 km) |
| Rockford to Battle Ground (Washington) | 1,668.55 mi (2,685.28 km) |
