| Rockford to Brown Deer (Wisconsin) | 83.96 mi (135.13 km) |
| Rockford to Brownsburg (Indiana) | 218.17 mi (351.12 km) |
| Rockford to Brownsville (Florida) | 1,241.27 mi (1,997.63 km) |
| Rockford to Brownsville (Texas) | 1,220.30 mi (1,963.89 km) |
| Rockford to Brownwood (Texas) | 909.82 mi (1,464.22 km) |
| Rockford to Brunswick (Georgia) | 874.60 mi (1,407.54 km) |
| Rockford to Brunswick (Ohio) | 379.78 mi (611.20 km) |
| Rockford to Brushy Creek (Texas) | 942.99 mi (1,517.60 km) |
| Rockford to Bryan (Texas) | 897.50 mi (1,444.39 km) |
| Rockford to Bryant (Arkansas) | 559.67 mi (900.70 km) |
| Rockford to Bryn Mawr-Skyway (Washington) | 1,650.77 mi (2,656.66 km) |
| Rockford to Buckeye (Arizona) | 1,417.40 mi (2,281.08 km) |
| Rockford to Buckhall (Virginia) | 656.76 mi (1,056.96 km) |
| Rockford to Bucyrus (Ohio) | 330.64 mi (532.11 km) |
| Rockford to Buda (Texas) | 972.74 mi (1,565.48 km) |
