| Placentia to Marrero (Louisiana) | 1,645.70 mi (2,648.49 km) |
| Placentia to Marshall (Minnesota) | 1,382.62 mi (2,225.11 km) |
| Placentia to Marshall (Missouri) | 1,411.44 mi (2,271.49 km) |
| Placentia to Marshall (Texas) | 1,358.94 mi (2,187.01 km) |
| Placentia to Marshalltown (Iowa) | 1,464.47 mi (2,356.83 km) |
| Placentia to Marshfield (Wisconsin) | 1,646.41 mi (2,649.65 km) |
| Placentia to Martha Lake (Washington) | 991.35 mi (1,595.42 km) |
| Placentia to Martin (Tennessee) | 1,641.97 mi (2,642.50 km) |
| Placentia to Martinez (California) | 371.06 mi (597.17 km) |
| Placentia to Martinez (Georgia) | 2,044.98 mi (3,291.07 km) |
| Placentia to Martinsburg (West Virginia) | 2,224.89 mi (3,580.62 km) |
| Placentia to Martinsville (Indiana) | 1,773.94 mi (2,854.87 km) |
| Placentia to Martinsville (New Jersey) | 2,400.73 mi (3,863.60 km) |
| Placentia to Martinsville (Virginia) | 2,137.60 mi (3,440.14 km) |
| Placentia to Maryland City (Maryland) | 2,288.93 mi (3,683.68 km) |
