| Morro Bay to McHenry (Illinois) | 1,804.48 mi (2,904.03 km) |
| Morro Bay to McKeesport (Pennsylvania) | 2,242.90 mi (3,609.59 km) |
| Morro Bay to McKinleyville (California) | 423.72 mi (681.91 km) |
| Morro Bay to McKinney (Texas) | 1,385.09 mi (2,229.08 km) |
| Morro Bay to McLean (Virginia) | 2,393.64 mi (3,852.19 km) |
| Morro Bay to McMinnville (Oregon) | 691.11 mi (1,112.24 km) |
| Morro Bay to McMinnville (Tennessee) | 1,961.32 mi (3,156.45 km) |
| Morro Bay to McNair (Virginia) | 2,382.01 mi (3,833.47 km) |
| Morro Bay to McPherson (Kansas) | 1,294.85 mi (2,083.86 km) |
| Morro Bay to Mead Valley (California) | 228.69 mi (368.04 km) |
| Morro Bay to Meadow Woods (Florida) | 2,351.74 mi (3,784.75 km) |
| Morro Bay to Meadowbrook (Virginia) | 2,395.08 mi (3,854.50 km) |
| Morro Bay to Meadville (Pennsylvania) | 2,221.69 mi (3,575.47 km) |
| Morro Bay to Mebane (North Carolina) | 2,314.42 mi (3,724.69 km) |
| Morro Bay to Mechanicsville (Virginia) | 2,399.10 mi (3,860.98 km) |
