| Gahanna to Marysville (California) | 2,046.18 mi (3,293.00 km) |
| Gahanna to Marysville (Ohio) | 29.71 mi (47.81 km) |
| Gahanna to Marysville (Washington) | 2,004.90 mi (3,226.57 km) |
| Gahanna to Maryville (Missouri) | 633.67 mi (1,019.79 km) |
| Gahanna to Maryville (Tennessee) | 301.78 mi (485.67 km) |
| Gahanna to Mason (Ohio) | 89.33 mi (143.76 km) |
| Gahanna to Mason City (Iowa) | 575.60 mi (926.33 km) |
| Gahanna to Massapequa (New York) | 496.38 mi (798.85 km) |
| Gahanna to Massapequa Park (New York) | 497.52 mi (800.68 km) |
| Gahanna to Massillon (Ohio) | 87.78 mi (141.27 km) |
| Gahanna to Mastic (New York) | 529.35 mi (851.91 km) |
| Gahanna to Mastic Beach (New York) | 529.80 mi (852.63 km) |
| Gahanna to Matteson (Illinois) | 275.29 mi (443.04 km) |
| Gahanna to Matthews (North Carolina) | 358.84 mi (577.50 km) |
| Gahanna to Mattoon (Illinois) | 294.48 mi (473.92 km) |
