| Havre de Grace to Madison (New Jersey) | 122.61 mi (197.32 km) |
| Havre de Grace to Madison (Wisconsin) | 730.10 mi (1,174.98 km) |
| Havre de Grace to Madison Heights (Michigan) | 417.54 mi (671.97 km) |
| Havre de Grace to Madison Heights (Virginia) | 217.23 mi (349.60 km) |
| Havre de Grace to Madisonville (Kentucky) | 634.40 mi (1,020.97 km) |
| Havre de Grace to Magalia (California) | 2,392.20 mi (3,849.87 km) |
| Havre de Grace to Magna (Utah) | 1,891.89 mi (3,044.70 km) |
| Havre de Grace to Magnolia (Arkansas) | 1,043.18 mi (1,678.83 km) |
| Havre de Grace to Maili (Hawaii) | 4,880.00 mi (7,853.60 km) |
| Havre de Grace to Maitland (Florida) | 811.75 mi (1,306.38 km) |
| Havre de Grace to Makakilo (Hawaii) | 4,877.57 mi (7,849.69 km) |
| Havre de Grace to Malden (Massachusetts) | 330.39 mi (531.71 km) |
| Havre de Grace to Malibu (California) | 2,369.02 mi (3,812.56 km) |
| Havre de Grace to Maltby (Washington) | 2,331.25 mi (3,751.79 km) |
| Havre de Grace to Malvern (Arkansas) | 987.29 mi (1,588.89 km) |
