| San Cugat del Valles to McKeesport (Pennsylvania) | 4,104.80 mi (6,606.04 km) |
| San Cugat del Valles to McKinleyville (California) | 5,821.69 mi (9,369.10 km) |
| San Cugat del Valles to McKinney (Texas) | 5,147.38 mi (8,283.91 km) |
| San Cugat del Valles to McLean (Virginia) | 4,031.83 mi (6,488.61 km) |
| San Cugat del Valles to McMinnville (Oregon) | 5,561.53 mi (8,950.41 km) |
| San Cugat del Valles to McMinnville (Tennessee) | 4,550.37 mi (7,323.12 km) |
| San Cugat del Valles to McNair (Virginia) | 4,041.66 mi (6,504.42 km) |
| San Cugat del Valles to McPherson (Kansas) | 4,963.65 mi (7,988.23 km) |
| San Cugat del Valles to Mead Valley (California) | 5,966.89 mi (9,602.78 km) |
| San Cugat del Valles to Meadow Woods (Florida) | 4,631.98 mi (7,454.45 km) |
| San Cugat del Valles to Meadowbrook (Virginia) | 4,098.13 mi (6,595.30 km) |
| San Cugat del Valles to Meadville (Pennsylvania) | 4,073.04 mi (6,554.93 km) |
| San Cugat del Valles to Mebane (North Carolina) | 4,231.70 mi (6,810.27 km) |
| San Cugat del Valles to Mechanicsville (Virginia) | 4,085.61 mi (6,575.16 km) |
| San Cugat del Valles to Medford (Massachusetts) | 3,637.73 mi (5,854.36 km) |
