| Gahanna to Mitchell (South Dakota) | 819.91 mi (1,319.52 km) |
| Gahanna to Mitchellville (Maryland) | 331.18 mi (532.99 km) |
| Gahanna to Moberly (Missouri) | 510.21 mi (821.10 km) |
| Gahanna to Mobile (Alabama) | 710.05 mi (1,142.72 km) |
| Gahanna to Modesto (California) | 2,043.73 mi (3,289.06 km) |
| Gahanna to Mokena (Illinois) | 282.22 mi (454.19 km) |
| Gahanna to Moline (Illinois) | 411.60 mi (662.41 km) |
| Gahanna to Moncks Corner (South Carolina) | 499.10 mi (803.23 km) |
| Gahanna to Monfort Heights (Ohio) | 109.58 mi (176.35 km) |
| Gahanna to Monmouth (Oregon) | 2,063.36 mi (3,320.66 km) |
| Gahanna to Monroe (Georgia) | 432.74 mi (696.44 km) |
| Gahanna to Monroe (Louisiana) | 728.86 mi (1,172.99 km) |
| Gahanna to Monroe (Michigan) | 133.41 mi (214.71 km) |
| Gahanna to Monroe (North Carolina) | 369.00 mi (593.85 km) |
| Gahanna to Monroe (Ohio) | 89.32 mi (143.74 km) |
