| Crofton to McKeesport (Pennsylvania) | 191.61 mi (308.36 km) |
| Crofton to McKinleyville (California) | 2,482.35 mi (3,994.96 km) |
| Crofton to McKinney (Texas) | 1,182.75 mi (1,903.45 km) |
| Crofton to McLean (Virginia) | 28.05 mi (45.15 km) |
| Crofton to McMinnville (Oregon) | 2,388.20 mi (3,843.43 km) |
| Crofton to McMinnville (Tennessee) | 549.88 mi (884.95 km) |
| Crofton to McNair (Virginia) | 39.53 mi (63.62 km) |
| Crofton to McPherson (Kansas) | 1,129.80 mi (1,818.24 km) |
| Crofton to Mead Valley (California) | 2,266.70 mi (3,647.90 km) |
| Crofton to Meadow Woods (Florida) | 782.56 mi (1,259.40 km) |
| Crofton to Meadowbrook (Virginia) | 117.64 mi (189.33 km) |
| Crofton to Meadville (Pennsylvania) | 257.72 mi (414.76 km) |
| Crofton to Mebane (North Carolina) | 247.25 mi (397.91 km) |
| Crofton to Mechanicsville (Virginia) | 102.67 mi (165.23 km) |
| Crofton to Medford (Massachusetts) | 374.82 mi (603.21 km) |
