| Rockford to Bonham (Texas) | 713.40 mi (1,148.11 km) |
| Rockford to Bonita (California) | 1,661.03 mi (2,673.18 km) |
| Rockford to Bonita Springs (Florida) | 1,173.57 mi (1,888.68 km) |
| Rockford to Bonney Lake (Washington) | 1,647.45 mi (2,651.31 km) |
| Rockford to Boone (Iowa) | 246.90 mi (397.35 km) |
| Rockford to Boone (North Carolina) | 575.18 mi (925.67 km) |
| Rockford to Borger (Texas) | 803.22 mi (1,292.66 km) |
| Rockford to Bossier City (Louisiana) | 718.35 mi (1,156.08 km) |
| Rockford to Boston (Massachusetts) | 917.23 mi (1,476.14 km) |
| Rockford to Bostonia (California) | 1,651.44 mi (2,657.74 km) |
| Rockford to Bothell (Washington) | 1,649.29 mi (2,654.27 km) |
| Rockford to Bothell East (Washington) | 1,648.40 mi (2,652.84 km) |
| Rockford to Bothell West (Washington) | 1,650.98 mi (2,657.00 km) |
| Rockford to Boulder (Colorado) | 854.99 mi (1,375.98 km) |
| Rockford to Boulder City (Nevada) | 1,450.25 mi (2,333.96 km) |
