| South Plainfield to McHenry (Illinois) | 728.04 mi (1,171.67 km) |
| South Plainfield to McKeesport (Pennsylvania) | 285.81 mi (459.96 km) |
| South Plainfield to McKinleyville (California) | 2,563.45 mi (4,125.47 km) |
| South Plainfield to McKinney (Texas) | 1,326.30 mi (2,134.48 km) |
| South Plainfield to McLean (Virginia) | 185.70 mi (298.86 km) |
| South Plainfield to McMinnville (Oregon) | 2,451.86 mi (3,945.89 km) |
| South Plainfield to McMinnville (Tennessee) | 703.23 mi (1,131.74 km) |
| South Plainfield to McNair (Virginia) | 194.68 mi (313.31 km) |
| South Plainfield to McPherson (Kansas) | 1,245.42 mi (2,004.31 km) |
| South Plainfield to Mead Valley (California) | 2,380.67 mi (3,831.31 km) |
| South Plainfield to Meadow Woods (Florida) | 930.34 mi (1,497.23 km) |
| South Plainfield to Meadowbrook (Virginia) | 272.33 mi (438.27 km) |
| South Plainfield to Meadville (Pennsylvania) | 307.37 mi (494.67 km) |
| South Plainfield to Mebane (North Carolina) | 406.75 mi (654.61 km) |
| South Plainfield to Mechanicsville (Virginia) | 257.58 mi (414.54 km) |
