| Grays to Mitchell (South Dakota) | 4,257.49 mi (6,851.77 km) |
| Grays to Mitchellville (Maryland) | 3,673.64 mi (5,912.15 km) |
| Grays to Moberly (Missouri) | 4,265.53 mi (6,864.71 km) |
| Grays to Mobile (Alabama) | 4,529.99 mi (7,290.32 km) |
| Grays to Modesto (California) | 5,335.18 mi (8,586.14 km) |
| Grays to Mokena (Illinois) | 3,991.58 mi (6,423.83 km) |
| Grays to Moline (Illinois) | 4,092.76 mi (6,586.66 km) |
| Grays to Moncks Corner (South Carolina) | 4,074.16 mi (6,556.72 km) |
| Grays to Monfort Heights (Ohio) | 3,974.85 mi (6,396.91 km) |
| Grays to Monmouth (Oregon) | 4,980.39 mi (8,015.16 km) |
| Grays to Monroe (Georgia) | 4,196.21 mi (6,753.15 km) |
| Grays to Monroe (Louisiana) | 4,595.78 mi (7,396.19 km) |
| Grays to Monroe (Michigan) | 3,801.14 mi (6,117.34 km) |
| Grays to Monroe (North Carolina) | 4,009.00 mi (6,451.86 km) |
| Grays to Monroe (Ohio) | 3,953.04 mi (6,361.81 km) |
