| Greensboro to Mauldin (South Carolina) | 166.32 mi (267.66 km) |
| Greensboro to Maumee (Ohio) | 430.79 mi (693.30 km) |
| Greensboro to Maumelle (Arkansas) | 712.14 mi (1,146.08 km) |
| Greensboro to Mayagüez (Puerto Rico) | 1,458.71 mi (2,347.57 km) |
| Greensboro to Mayfield Heights (Ohio) | 384.69 mi (619.09 km) |
| Greensboro to Mays Chapel (Maryland) | 288.57 mi (464.40 km) |
| Greensboro to Maywood (California) | 2,160.87 mi (3,477.58 km) |
| Greensboro to Maywood (Illinois) | 586.95 mi (944.61 km) |
| Greensboro to McAlester (Oklahoma) | 899.48 mi (1,447.57 km) |
| Greensboro to McAllen (Texas) | 1,281.49 mi (2,062.35 km) |
| Greensboro to McCalla (Alabama) | 452.24 mi (727.81 km) |
| Greensboro to McComb (Mississippi) | 697.25 mi (1,122.11 km) |
| Greensboro to McDonough (Georgia) | 306.36 mi (493.03 km) |
| Greensboro to McFarland (California) | 2,191.10 mi (3,526.24 km) |
| Greensboro to McHenry (Illinois) | 625.05 mi (1,005.93 km) |
