| Sumter to Mattoon (Illinois) | 583.75 mi (939.46 km) |
| Sumter to Mauldin (South Carolina) | 123.54 mi (198.81 km) |
| Sumter to Maumee (Ohio) | 556.54 mi (895.66 km) |
| Sumter to Maumelle (Arkansas) | 687.04 mi (1,105.68 km) |
| Sumter to Mayagüez (Puerto Rico) | 1,360.59 mi (2,189.66 km) |
| Sumter to Mayfield Heights (Ohio) | 526.79 mi (847.78 km) |
| Sumter to Mays Chapel (Maryland) | 432.47 mi (696.00 km) |
| Sumter to Maywood (California) | 2,153.23 mi (3,465.29 km) |
| Sumter to Maywood (Illinois) | 682.03 mi (1,097.62 km) |
| Sumter to McAlester (Oklahoma) | 878.27 mi (1,413.44 km) |
| Sumter to McAllen (Texas) | 1,190.66 mi (1,916.18 km) |
| Sumter to McCalla (Alabama) | 384.33 mi (618.52 km) |
| Sumter to McComb (Mississippi) | 615.22 mi (990.11 km) |
| Sumter to McDonough (Georgia) | 218.74 mi (352.03 km) |
| Sumter to McFarland (California) | 2,192.78 mi (3,528.94 km) |
