| San Marcos to Berkeley (California) | 435.13 mi (700.28 km) |
| San Marcos to Berkley (Colorado) | 816.00 mi (1,313.22 km) |
| San Marcos to Berkley (Michigan) | 1,949.38 mi (3,137.23 km) |
| San Marcos to Berthoud (Colorado) | 833.55 mi (1,341.47 km) |
| San Marcos to Berwick (Pennsylvania) | 2,298.60 mi (3,699.25 km) |
| San Marcos to Berwyn (Illinois) | 1,709.33 mi (2,750.90 km) |
| San Marcos to Bessemer (Alabama) | 1,738.92 mi (2,798.52 km) |
| San Marcos to Bethany (Oklahoma) | 1,124.68 mi (1,810.00 km) |
| San Marcos to Bethany (Oregon) | 909.72 mi (1,464.05 km) |
| San Marcos to Bethel Park (Pennsylvania) | 2,099.31 mi (3,378.51 km) |
| San Marcos to Bethesda (Maryland) | 2,255.00 mi (3,629.08 km) |
| San Marcos to Bethlehem (Pennsylvania) | 2,344.80 mi (3,773.60 km) |
| San Marcos to Bethpage (New York) | 2,443.19 mi (3,931.93 km) |
| San Marcos to Bettendorf (Iowa) | 1,569.84 mi (2,526.42 km) |
| San Marcos to Beverly (Massachusetts) | 2,575.37 mi (4,144.65 km) |
