| Holt to McKeesport (Pennsylvania) | 289.91 mi (466.56 km) |
| Holt to McKinleyville (California) | 2,022.25 mi (3,254.49 km) |
| Holt to McKinney (Texas) | 927.12 mi (1,492.06 km) |
| Holt to McLean (Virginia) | 460.77 mi (741.54 km) |
| Holt to McMinnville (Oregon) | 1,913.60 mi (3,079.64 km) |
| Holt to McMinnville (Tennessee) | 485.19 mi (780.83 km) |
| Holt to McNair (Virginia) | 451.05 mi (725.90 km) |
| Holt to McPherson (Kansas) | 749.15 mi (1,205.64 km) |
| Holt to Mead Valley (California) | 1,865.14 mi (3,001.66 km) |
| Holt to Meadow Woods (Florida) | 1,002.01 mi (1,612.57 km) |
| Holt to Meadowbrook (Virginia) | 518.31 mi (834.14 km) |
| Holt to Meadville (Pennsylvania) | 234.82 mi (377.91 km) |
| Holt to Mebane (North Carolina) | 532.73 mi (857.34 km) |
| Holt to Mechanicsville (Virginia) | 513.18 mi (825.88 km) |
| Holt to Medford (Massachusetts) | 682.83 mi (1,098.91 km) |
