| Gretna to Beltsville (Maryland) | 976.51 mi (1,571.54 km) |
| Gretna to Belvedere Park (Georgia) | 431.07 mi (693.74 km) |
| Gretna to Belvidere (Illinois) | 855.45 mi (1,376.71 km) |
| Gretna to Bemidji (Minnesota) | 1,241.12 mi (1,997.39 km) |
| Gretna to Benbrook (Texas) | 477.45 mi (768.38 km) |
| Gretna to Bend (Oregon) | 1,965.57 mi (3,163.28 km) |
| Gretna to Benicia (California) | 1,912.62 mi (3,078.07 km) |
| Gretna to Bensenville (Illinois) | 840.65 mi (1,352.90 km) |
| Gretna to Bensville (Maryland) | 955.73 mi (1,538.09 km) |
| Gretna to Benton (Arkansas) | 354.48 mi (570.48 km) |
| Gretna to Bentonville (Arkansas) | 506.55 mi (815.21 km) |
| Gretna to Berea (Kentucky) | 625.10 mi (1,006.00 km) |
| Gretna to Berea (Ohio) | 914.52 mi (1,471.78 km) |
| Gretna to Berea (South Carolina) | 559.88 mi (901.04 km) |
| Gretna to Bergenfield (New Jersey) | 1,178.13 mi (1,896.02 km) |
