| Napa to Bixby (Oklahoma) | 1,459.76 mi (2,349.25 km) |
| Napa to Black Forest (Colorado) | 950.68 mi (1,529.97 km) |
| Napa to Blackfoot (Idaho) | 620.66 mi (998.85 km) |
| Napa to Blackhawk (California) | 39.58 mi (63.70 km) |
| Napa to Blacksburg (Virginia) | 2,268.57 mi (3,650.91 km) |
| Napa to Blackwells Mills (New Jersey) | 2,520.63 mi (4,056.57 km) |
| Napa to Blaine (Minnesota) | 1,563.61 mi (2,516.39 km) |
| Napa to Bloomingdale (Florida) | 2,406.10 mi (3,872.24 km) |
| Napa to Bloomingdale (Illinois) | 1,812.80 mi (2,917.42 km) |
| Napa to Bloomington (California) | 400.35 mi (644.31 km) |
| Napa to Bloomington (Illinois) | 1,775.66 mi (2,857.65 km) |
| Napa to Bloomington (Indiana) | 1,916.62 mi (3,084.49 km) |
| Napa to Bloomington (Minnesota) | 1,555.54 mi (2,503.40 km) |
| Napa to Bloomsburg (Pennsylvania) | 2,417.99 mi (3,891.39 km) |
| Napa to Blue Ash (Ohio) | 2,028.58 mi (3,264.68 km) |
