| Carrigaline to McKeesport (Pennsylvania) | 3,371.67 mi (5,426.17 km) |
| Carrigaline to McKinleyville (California) | 4,959.33 mi (7,981.27 km) |
| Carrigaline to McKinney (Texas) | 4,388.39 mi (7,062.43 km) |
| Carrigaline to McLean (Virginia) | 3,323.00 mi (5,347.85 km) |
| Carrigaline to McMinnville (Oregon) | 4,695.93 mi (7,557.38 km) |
| Carrigaline to McMinnville (Tennessee) | 3,826.33 mi (6,157.89 km) |
| Carrigaline to McNair (Virginia) | 3,331.70 mi (5,361.85 km) |
| Carrigaline to McPherson (Kansas) | 4,172.46 mi (6,714.93 km) |
| Carrigaline to Mead Valley (California) | 5,130.50 mi (8,256.74 km) |
| Carrigaline to Meadow Woods (Florida) | 3,993.38 mi (6,426.72 km) |
| Carrigaline to Meadowbrook (Virginia) | 3,401.59 mi (5,474.33 km) |
| Carrigaline to Meadville (Pennsylvania) | 3,327.97 mi (5,355.85 km) |
| Carrigaline to Mebane (North Carolina) | 3,537.72 mi (5,693.41 km) |
| Carrigaline to Mechanicsville (Virginia) | 3,387.90 mi (5,452.30 km) |
| Carrigaline to Medford (Massachusetts) | 2,923.83 mi (4,705.46 km) |
