| Rock Island to Baraboo (Wisconsin) | 144.71 mi (232.90 km) |
| Rock Island to Barberton (Ohio) | 467.38 mi (752.17 km) |
| Rock Island to Bardstown (Kentucky) | 371.50 mi (597.87 km) |
| Rock Island to Barrington (Illinois) | 134.89 mi (217.08 km) |
| Rock Island to Barstow (California) | 1,501.37 mi (2,416.22 km) |
| Rock Island to Bartlesville (Oklahoma) | 435.29 mi (700.53 km) |
| Rock Island to Bartlett (Illinois) | 127.48 mi (205.15 km) |
| Rock Island to Bartlett (Tennessee) | 432.85 mi (696.61 km) |
| Rock Island to Bartow (Florida) | 1,060.95 mi (1,707.43 km) |
| Rock Island to Batavia (Illinois) | 120.14 mi (193.35 km) |
| Rock Island to Batavia (New York) | 642.59 mi (1,034.14 km) |
| Rock Island to Batesville (Arkansas) | 397.89 mi (640.34 km) |
| Rock Island to Baton Rouge (Louisiana) | 762.57 mi (1,227.23 km) |
| Rock Island to Battle Creek (Michigan) | 281.20 mi (452.55 km) |
| Rock Island to Battle Ground (Washington) | 1,614.68 mi (2,598.58 km) |
