| Gahanna to Mauldin (South Carolina) | 363.56 mi (585.09 km) |
| Gahanna to Maumee (Ohio) | 114.62 mi (184.47 km) |
| Gahanna to Maumelle (Arkansas) | 633.01 mi (1,018.73 km) |
| Gahanna to Mayagüez (Puerto Rico) | 1,775.47 mi (2,857.34 km) |
| Gahanna to Mayfield Heights (Ohio) | 126.79 mi (204.05 km) |
| Gahanna to Mays Chapel (Maryland) | 332.54 mi (535.17 km) |
| Gahanna to Maywood (California) | 1,979.55 mi (3,185.78 km) |
| Gahanna to Maywood (Illinois) | 289.71 mi (466.24 km) |
| Gahanna to McAlester (Oklahoma) | 789.64 mi (1,270.81 km) |
| Gahanna to McAllen (Texas) | 1,300.49 mi (2,092.93 km) |
| Gahanna to McCalla (Alabama) | 518.57 mi (834.56 km) |
| Gahanna to McComb (Mississippi) | 741.36 mi (1,193.10 km) |
| Gahanna to McDonough (Georgia) | 460.54 mi (741.16 km) |
| Gahanna to McFarland (California) | 1,993.19 mi (3,207.72 km) |
| Gahanna to McHenry (Illinois) | 324.36 mi (522.00 km) |
