| Mill Valley to Blue Island (Illinois) | 1,856.20 mi (2,987.26 km) |
| Mill Valley to Blue Springs (Missouri) | 1,525.24 mi (2,454.63 km) |
| Mill Valley to Bluffdale (Utah) | 594.43 mi (956.64 km) |
| Mill Valley to Bluffton (Indiana) | 1,991.77 mi (3,205.44 km) |
| Mill Valley to Bluffton (South Carolina) | 2,366.18 mi (3,807.99 km) |
| Mill Valley to Blythe (California) | 533.54 mi (858.65 km) |
| Mill Valley to Blytheville (Arkansas) | 1,798.79 mi (2,894.87 km) |
| Mill Valley to Boca Raton (Florida) | 2,582.56 mi (4,156.23 km) |
| Mill Valley to Boerne (Texas) | 1,471.92 mi (2,368.82 km) |
| Mill Valley to Bogalusa (Louisiana) | 1,917.43 mi (3,085.80 km) |
| Mill Valley to Boiling Springs (South Carolina) | 2,244.62 mi (3,612.36 km) |
| Mill Valley to Boise (Idaho) | 513.27 mi (826.02 km) |
| Mill Valley to Bolingbrook (Illinois) | 1,834.38 mi (2,952.14 km) |
| Mill Valley to Bolivar (Missouri) | 1,584.57 mi (2,550.13 km) |
| Mill Valley to Bon Air (Virginia) | 2,433.68 mi (3,916.64 km) |
