| Gary to Mitchell (South Dakota) | 562.28 mi (904.89 km) |
| Gary to Mitchellville (Maryland) | 584.37 mi (940.46 km) |
| Gary to Moberly (Missouri) | 306.54 mi (493.33 km) |
| Gary to Mobile (Alabama) | 755.18 mi (1,215.34 km) |
| Gary to Modesto (California) | 1,800.44 mi (2,897.53 km) |
| Gary to Mokena (Illinois) | 27.73 mi (44.63 km) |
| Gary to Moline (Illinois) | 162.80 mi (262.01 km) |
| Gary to Moncks Corner (South Carolina) | 706.83 mi (1,137.53 km) |
| Gary to Monfort Heights (Ohio) | 220.15 mi (354.29 km) |
| Gary to Monmouth (Oregon) | 1,805.72 mi (2,906.02 km) |
| Gary to Monroe (Georgia) | 573.63 mi (923.16 km) |
| Gary to Monroe (Louisiana) | 678.62 mi (1,092.13 km) |
| Gary to Monroe (Michigan) | 205.45 mi (330.65 km) |
| Gary to Monroe (North Carolina) | 584.75 mi (941.06 km) |
| Gary to Monroe (Ohio) | 215.52 mi (346.85 km) |
