| Napa to Baraboo (Wisconsin) | 1,726.55 mi (2,778.62 km) |
| Napa to Barberton (Ohio) | 2,153.43 mi (3,465.62 km) |
| Napa to Bardstown (Kentucky) | 1,991.37 mi (3,204.80 km) |
| Napa to Barrington (Illinois) | 1,810.02 mi (2,912.95 km) |
| Napa to Barstow (California) | 375.62 mi (604.51 km) |
| Napa to Bartlesville (Oklahoma) | 1,443.48 mi (2,323.06 km) |
| Napa to Bartlett (Illinois) | 1,806.64 mi (2,907.51 km) |
| Napa to Bartlett (Tennessee) | 1,800.97 mi (2,898.37 km) |
| Napa to Bartow (Florida) | 2,429.65 mi (3,910.14 km) |
| Napa to Batavia (Illinois) | 1,801.87 mi (2,899.83 km) |
| Napa to Batavia (New York) | 2,308.78 mi (3,715.62 km) |
| Napa to Batesville (Arkansas) | 1,693.31 mi (2,725.12 km) |
| Napa to Baton Rouge (Louisiana) | 1,848.61 mi (2,975.05 km) |
| Napa to Battle Creek (Michigan) | 1,957.33 mi (3,150.01 km) |
| Napa to Battle Ground (Washington) | 516.90 mi (831.87 km) |
