| Gretna to Beverly Hills (California) | 1,680.52 mi (2,704.53 km) |
| Gretna to Beverly Hills (Florida) | 462.28 mi (743.97 km) |
| Gretna to Beverly Hills (Michigan) | 949.65 mi (1,528.31 km) |
| Gretna to Bexley (Ohio) | 802.53 mi (1,291.55 km) |
| Gretna to Biddeford (Maine) | 1,427.55 mi (2,297.42 km) |
| Gretna to Big Bear City (California) | 1,589.05 mi (2,557.33 km) |
| Gretna to Big Lake (Minnesota) | 1,084.87 mi (1,745.93 km) |
| Gretna to Big Spring (Texas) | 694.80 mi (1,118.18 km) |
| Gretna to Billings (Montana) | 1,483.50 mi (2,387.46 km) |
| Gretna to Biloxi (Mississippi) | 75.31 mi (121.20 km) |
| Gretna to Binghamton (New York) | 1,152.02 mi (1,853.99 km) |
| Gretna to Birmingham (Alabama) | 314.70 mi (506.47 km) |
| Gretna to Birmingham (Michigan) | 951.62 mi (1,531.49 km) |
| Gretna to Bismarck (North Dakota) | 1,301.48 mi (2,094.53 km) |
| Gretna to Bithlo (Florida) | 547.06 mi (880.41 km) |
