| Round Lake Beach to Blue Island (Illinois) | 53.90 mi (86.74 km) |
| Round Lake Beach to Blue Springs (Missouri) | 398.94 mi (642.03 km) |
| Round Lake Beach to Bluffdale (Utah) | 1,238.82 mi (1,993.69 km) |
| Round Lake Beach to Bluffton (Indiana) | 188.11 mi (302.73 km) |
| Round Lake Beach to Bluffton (South Carolina) | 804.10 mi (1,294.07 km) |
| Round Lake Beach to Blythe (California) | 1,558.21 mi (2,507.70 km) |
| Round Lake Beach to Blytheville (Arkansas) | 456.00 mi (733.87 km) |
| Round Lake Beach to Boca Raton (Florida) | 1,194.19 mi (1,921.86 km) |
| Round Lake Beach to Boerne (Texas) | 1,052.00 mi (1,693.03 km) |
| Round Lake Beach to Bogalusa (Louisiana) | 807.36 mi (1,299.32 km) |
| Round Lake Beach to Boiling Springs (South Carolina) | 603.80 mi (971.73 km) |
| Round Lake Beach to Boise (Idaho) | 1,418.37 mi (2,282.65 km) |
| Round Lake Beach to Bolingbrook (Illinois) | 47.62 mi (76.63 km) |
| Round Lake Beach to Bolivar (Missouri) | 434.04 mi (698.52 km) |
| Round Lake Beach to Bon Air (Virginia) | 649.41 mi (1,045.13 km) |
