| Napa to Missouri City (Texas) | 1,641.39 mi (2,641.56 km) |
| Napa to Mitchell (South Dakota) | 1,314.23 mi (2,115.05 km) |
| Napa to Mitchellville (Maryland) | 2,429.93 mi (3,910.60 km) |
| Napa to Moberly (Missouri) | 1,601.34 mi (2,577.11 km) |
| Napa to Mobile (Alabama) | 2,004.22 mi (3,225.48 km) |
| Napa to Modesto (California) | 84.14 mi (135.41 km) |
| Napa to Mokena (Illinois) | 1,825.68 mi (2,938.15 km) |
| Napa to Moline (Illinois) | 1,690.96 mi (2,721.34 km) |
| Napa to Moncks Corner (South Carolina) | 2,377.31 mi (3,825.91 km) |
| Napa to Monfort Heights (Ohio) | 2,017.56 mi (3,246.95 km) |
| Napa to Monmouth (Oregon) | 455.29 mi (732.72 km) |
| Napa to Monroe (Georgia) | 2,161.99 mi (3,479.39 km) |
| Napa to Monroe (Louisiana) | 1,739.89 mi (2,800.08 km) |
| Napa to Monroe (Michigan) | 2,053.93 mi (3,305.48 km) |
| Napa to Monroe (North Carolina) | 2,305.37 mi (3,710.13 km) |
