| Placentia to Mendota (California) | 244.26 mi (393.10 km) |
| Placentia to Mendota Heights (Minnesota) | 1,514.18 mi (2,436.84 km) |
| Placentia to Menifee (California) | 40.67 mi (65.45 km) |
| Placentia to Menlo Park (California) | 346.36 mi (557.42 km) |
| Placentia to Menomonee Falls (Wisconsin) | 1,718.91 mi (2,766.31 km) |
| Placentia to Menomonie (Wisconsin) | 1,570.75 mi (2,527.88 km) |
| Placentia to Mentor (Ohio) | 2,049.10 mi (3,297.71 km) |
| Placentia to Mequon (Wisconsin) | 1,726.98 mi (2,779.30 km) |
| Placentia to Merced (California) | 278.74 mi (448.59 km) |
| Placentia to Mercedes (Texas) | 1,304.05 mi (2,098.67 km) |
| Placentia to Mercer Island (Washington) | 972.53 mi (1,565.13 km) |
| Placentia to Mercerville (New Jersey) | 2,396.04 mi (3,856.05 km) |
| Placentia to Meriden (Connecticut) | 2,490.12 mi (4,007.46 km) |
| Placentia to Meridian (Idaho) | 676.88 mi (1,089.33 km) |
| Placentia to Meridian (Mississippi) | 1,685.03 mi (2,711.80 km) |
