| Cobh to McKeesport (Pennsylvania) | 3,374.85 mi (5,431.30 km) |
| Cobh to McKinleyville (California) | 4,960.54 mi (7,983.22 km) |
| Cobh to McKinney (Texas) | 4,391.28 mi (7,067.09 km) |
| Cobh to McLean (Virginia) | 3,326.36 mi (5,353.26 km) |
| Cobh to McMinnville (Oregon) | 4,696.97 mi (7,559.05 km) |
| Cobh to McMinnville (Tennessee) | 3,829.55 mi (6,163.07 km) |
| Cobh to McNair (Virginia) | 3,335.05 mi (5,367.25 km) |
| Cobh to McPherson (Kansas) | 4,175.04 mi (6,719.08 km) |
| Cobh to Mead Valley (California) | 5,132.40 mi (8,259.80 km) |
| Cobh to Meadow Woods (Florida) | 3,997.10 mi (6,432.71 km) |
| Cobh to Meadowbrook (Virginia) | 3,405.03 mi (5,479.87 km) |
| Cobh to Meadville (Pennsylvania) | 3,331.06 mi (5,360.82 km) |
| Cobh to Mebane (North Carolina) | 3,541.17 mi (5,698.96 km) |
| Cobh to Mechanicsville (Virginia) | 3,391.34 mi (5,457.83 km) |
| Cobh to Medford (Massachusetts) | 2,927.20 mi (4,710.88 km) |
