| New Port Richey to Maryland Heights (Missouri) | 849.71 mi (1,367.48 km) |
| New Port Richey to Marysville (California) | 2,337.35 mi (3,761.60 km) |
| New Port Richey to Marysville (Ohio) | 828.62 mi (1,333.53 km) |
| New Port Richey to Marysville (Washington) | 2,503.11 mi (4,028.36 km) |
| New Port Richey to Maryville (Missouri) | 1,083.91 mi (1,744.39 km) |
| New Port Richey to Maryville (Tennessee) | 523.43 mi (842.38 km) |
| New Port Richey to Mason (Ohio) | 772.98 mi (1,244.00 km) |
| New Port Richey to Mason City (Iowa) | 1,183.54 mi (1,904.73 km) |
| New Port Richey to Massapequa (New York) | 1,005.57 mi (1,618.30 km) |
| New Port Richey to Massapequa Park (New York) | 1,006.99 mi (1,620.60 km) |
| New Port Richey to Massillon (Ohio) | 868.85 mi (1,398.28 km) |
| New Port Richey to Mastic (New York) | 1,032.33 mi (1,661.37 km) |
| New Port Richey to Mastic Beach (New York) | 1,030.25 mi (1,658.02 km) |
| New Port Richey to Matteson (Illinois) | 959.21 mi (1,543.71 km) |
| New Port Richey to Matthews (North Carolina) | 489.26 mi (787.39 km) |
