| Knowle to Mauldin (South Carolina) | 3,988.28 mi (6,418.52 km) |
| Knowle to Maumee (Ohio) | 3,721.62 mi (5,989.37 km) |
| Knowle to Maumelle (Arkansas) | 4,384.54 mi (7,056.24 km) |
| Knowle to Mayagüez (Puerto Rico) | 4,197.06 mi (6,754.51 km) |
| Knowle to Mayfield Heights (Ohio) | 3,638.07 mi (5,854.90 km) |
| Knowle to Mays Chapel (Maryland) | 3,541.59 mi (5,699.63 km) |
| Knowle to Maywood (California) | 5,350.85 mi (8,611.36 km) |
| Knowle to Maywood (Illinois) | 3,867.13 mi (6,223.54 km) |
| Knowle to McAlester (Oklahoma) | 4,510.10 mi (7,258.30 km) |
| Knowle to McAllen (Texas) | 5,062.15 mi (8,146.74 km) |
| Knowle to McCalla (Alabama) | 4,251.07 mi (6,841.44 km) |
| Knowle to McComb (Mississippi) | 4,492.19 mi (7,229.48 km) |
| Knowle to McDonough (Georgia) | 4,128.57 mi (6,644.30 km) |
| Knowle to McFarland (California) | 5,287.35 mi (8,509.17 km) |
| Knowle to McHenry (Illinois) | 3,862.55 mi (6,216.18 km) |
