| Napa to Brown Deer (Wisconsin) | 1,815.22 mi (2,921.31 km) |
| Napa to Brownsburg (Indiana) | 1,916.81 mi (3,084.81 km) |
| Napa to Brownsville (Florida) | 2,583.90 mi (4,158.39 km) |
| Napa to Brownsville (Texas) | 1,675.43 mi (2,696.35 km) |
| Napa to Brownwood (Texas) | 1,391.66 mi (2,239.66 km) |
| Napa to Brunswick (Georgia) | 2,350.90 mi (3,783.41 km) |
| Napa to Brunswick (Ohio) | 2,139.93 mi (3,443.89 km) |
| Napa to Brushy Creek (Texas) | 1,494.30 mi (2,404.84 km) |
| Napa to Bryan (Texas) | 1,561.29 mi (2,512.65 km) |
| Napa to Bryant (Arkansas) | 1,668.64 mi (2,685.41 km) |
| Napa to Bryn Mawr-Skyway (Washington) | 635.49 mi (1,022.72 km) |
| Napa to Buckeye (Arizona) | 636.24 mi (1,023.94 km) |
| Napa to Buckhall (Virginia) | 2,400.30 mi (3,862.92 km) |
| Napa to Bucyrus (Ohio) | 2,084.83 mi (3,355.21 km) |
| Napa to Buda (Texas) | 1,502.80 mi (2,418.53 km) |
