| Morro Bay to Maryland Heights (Missouri) | 1,683.16 mi (2,708.78 km) |
| Morro Bay to Marysville (California) | 264.53 mi (425.72 km) |
| Morro Bay to Marysville (Ohio) | 2,058.50 mi (3,312.84 km) |
| Morro Bay to Marysville (Washington) | 880.91 mi (1,417.69 km) |
| Morro Bay to Maryville (Missouri) | 1,452.55 mi (2,337.66 km) |
| Morro Bay to Maryville (Tennessee) | 2,060.16 mi (3,315.50 km) |
| Morro Bay to Mason (Ohio) | 2,011.97 mi (3,237.95 km) |
| Morro Bay to Mason City (Iowa) | 1,565.12 mi (2,518.82 km) |
| Morro Bay to Massapequa (New York) | 2,573.45 mi (4,141.56 km) |
| Morro Bay to Massapequa Park (New York) | 2,574.41 mi (4,143.11 km) |
| Morro Bay to Massillon (Ohio) | 2,152.84 mi (3,464.66 km) |
| Morro Bay to Mastic (New York) | 2,604.46 mi (4,191.48 km) |
| Morro Bay to Mastic Beach (New York) | 2,605.43 mi (4,193.04 km) |
| Morro Bay to Matteson (Illinois) | 1,829.00 mi (2,943.49 km) |
| Morro Bay to Matthews (North Carolina) | 2,249.10 mi (3,619.57 km) |
