| Napa to Bound Brook (New Jersey) | 2,522.33 mi (4,059.30 km) |
| Napa to Bountiful (Utah) | 583.07 mi (938.35 km) |
| Napa to Bourbonnais (Illinois) | 1,827.69 mi (2,941.39 km) |
| Napa to Bowie (Maryland) | 2,433.48 mi (3,916.31 km) |
| Napa to Bowling Green (Kentucky) | 1,952.12 mi (3,141.63 km) |
| Napa to Bowling Green (Ohio) | 2,044.61 mi (3,290.48 km) |
| Napa to Box Elder (South Dakota) | 1,073.61 mi (1,727.81 km) |
| Napa to Boynton Beach (Florida) | 2,568.42 mi (4,133.48 km) |
| Napa to Bozeman (Montana) | 769.31 mi (1,238.09 km) |
| Napa to Bradenton (Florida) | 2,401.84 mi (3,865.39 km) |
| Napa to Bradfordville (Florida) | 2,218.86 mi (3,570.91 km) |
| Napa to Bradley (Illinois) | 1,829.53 mi (2,944.35 km) |
| Napa to Bradley Gardens (New Jersey) | 2,515.64 mi (4,048.53 km) |
| Napa to Brainerd (Minnesota) | 1,529.70 mi (2,461.82 km) |
| Napa to Brambleton (Virginia) | 2,391.72 mi (3,849.10 km) |
