| Morro Bay to Marrero (Louisiana) | 1,820.44 mi (2,929.71 km) |
| Morro Bay to Marshall (Minnesota) | 1,460.93 mi (2,351.14 km) |
| Morro Bay to Marshall (Missouri) | 1,536.46 mi (2,472.70 km) |
| Morro Bay to Marshall (Texas) | 1,526.54 mi (2,456.73 km) |
| Morro Bay to Marshalltown (Iowa) | 1,567.42 mi (2,522.53 km) |
| Morro Bay to Marshfield (Wisconsin) | 1,732.89 mi (2,788.82 km) |
| Morro Bay to Martha Lake (Washington) | 865.19 mi (1,392.38 km) |
| Morro Bay to Martin (Tennessee) | 1,784.93 mi (2,872.57 km) |
| Morro Bay to Martinez (California) | 194.84 mi (313.56 km) |
| Morro Bay to Martinez (Georgia) | 2,197.55 mi (3,536.61 km) |
| Morro Bay to Martinsburg (West Virginia) | 2,347.44 mi (3,777.84 km) |
| Morro Bay to Martinsville (Indiana) | 1,898.21 mi (3,054.88 km) |
| Morro Bay to Martinsville (New Jersey) | 2,516.56 mi (4,050.02 km) |
| Morro Bay to Martinsville (Virginia) | 2,274.46 mi (3,660.38 km) |
| Morro Bay to Maryland City (Maryland) | 2,412.81 mi (3,883.04 km) |
