| Gretna to Bay City (Michigan) | 1,004.14 mi (1,616.00 km) |
| Gretna to Bay City (Texas) | 361.17 mi (581.25 km) |
| Gretna to Bay Point (California) | 1,901.96 mi (3,060.90 km) |
| Gretna to Bay Shore (New York) | 1,202.97 mi (1,936.00 km) |
| Gretna to Bay Village (Ohio) | 919.38 mi (1,479.61 km) |
| Gretna to Bayamón (Puerto Rico) | 1,698.58 mi (2,733.60 km) |
| Gretna to Bayonet Point (Florida) | 457.93 mi (736.97 km) |
| Gretna to Bayonne (New Jersey) | 1,162.93 mi (1,871.55 km) |
| Gretna to Bayou Blue (Louisiana) | 41.88 mi (67.41 km) |
| Gretna to Bayou Cane (Louisiana) | 46.37 mi (74.62 km) |
| Gretna to Bayshore Gardens (Florida) | 484.06 mi (779.02 km) |
| Gretna to Baytown (Texas) | 294.79 mi (474.41 km) |
| Gretna to Beach Park (Illinois) | 873.29 mi (1,405.42 km) |
| Gretna to Beachwood (New Jersey) | 1,130.78 mi (1,819.81 km) |
| Gretna to Beachwood (Ohio) | 930.89 mi (1,498.12 km) |
