| Marietta to McKeesport (Pennsylvania) | 511.45 mi (823.10 km) |
| Marietta to McKinleyville (California) | 2,202.57 mi (3,544.69 km) |
| Marietta to McKinney (Texas) | 699.48 mi (1,125.70 km) |
| Marietta to McLean (Virginia) | 534.14 mi (859.61 km) |
| Marietta to McMinnville (Oregon) | 2,175.46 mi (3,501.07 km) |
| Marietta to McMinnville (Tennessee) | 138.84 mi (223.44 km) |
| Marietta to McNair (Virginia) | 525.32 mi (845.42 km) |
| Marietta to McPherson (Kansas) | 791.94 mi (1,274.50 km) |
| Marietta to Mead Valley (California) | 1,869.80 mi (3,009.16 km) |
| Marietta to Meadow Woods (Florida) | 429.49 mi (691.20 km) |
| Marietta to Meadowbrook (Virginia) | 463.50 mi (745.94 km) |
| Marietta to Meadville (Pennsylvania) | 583.06 mi (938.34 km) |
| Marietta to Mebane (North Carolina) | 332.46 mi (535.04 km) |
| Marietta to Mechanicsville (Virginia) | 475.82 mi (765.75 km) |
| Marietta to Medford (Massachusetts) | 933.27 mi (1,501.95 km) |
