| Grays to Marshall (Minnesota) | 4,143.56 mi (6,668.41 km) |
| Grays to Marshall (Missouri) | 4,309.20 mi (6,934.99 km) |
| Grays to Marshall (Texas) | 4,684.19 mi (7,538.48 km) |
| Grays to Marshalltown (Iowa) | 4,156.05 mi (6,688.51 km) |
| Grays to Marshfield (Wisconsin) | 3,931.69 mi (6,327.45 km) |
| Grays to Martha Lake (Washington) | 4,781.62 mi (7,695.27 km) |
| Grays to Martin (Tennessee) | 4,278.07 mi (6,884.89 km) |
| Grays to Martinez (California) | 5,347.16 mi (8,605.42 km) |
| Grays to Martinez (Georgia) | 4,143.50 mi (6,668.32 km) |
| Grays to Martinsburg (West Virginia) | 3,697.37 mi (5,950.34 km) |
| Grays to Martinsville (Indiana) | 4,035.39 mi (6,494.33 km) |
| Grays to Martinsville (New Jersey) | 3,508.52 mi (5,646.42 km) |
| Grays to Martinsville (Virginia) | 3,901.44 mi (6,278.76 km) |
| Grays to Maryland City (Maryland) | 3,665.80 mi (5,899.53 km) |
| Grays to Maryland Heights (Missouri) | 4,225.03 mi (6,799.52 km) |
