| Owings Mills to Marrero (Louisiana) | 1,001.16 mi (1,611.21 km) |
| Owings Mills to Marshall (Minnesota) | 1,033.83 mi (1,663.78 km) |
| Owings Mills to Marshall (Missouri) | 876.87 mi (1,411.19 km) |
| Owings Mills to Marshall (Texas) | 1,088.17 mi (1,751.24 km) |
| Owings Mills to Marshalltown (Iowa) | 861.72 mi (1,386.80 km) |
| Owings Mills to Marshfield (Wisconsin) | 775.30 mi (1,247.72 km) |
| Owings Mills to Martha Lake (Washington) | 2,310.36 mi (3,718.17 km) |
| Owings Mills to Martin (Tennessee) | 690.51 mi (1,111.27 km) |
| Owings Mills to Martinez (California) | 2,419.83 mi (3,894.34 km) |
| Owings Mills to Martinez (Georgia) | 502.38 mi (808.51 km) |
| Owings Mills to Martinsburg (West Virginia) | 63.39 mi (102.01 km) |
| Owings Mills to Martinsville (Indiana) | 514.36 mi (827.78 km) |
| Owings Mills to Martinsville (New Jersey) | 143.29 mi (230.60 km) |
| Owings Mills to Martinsville (Virginia) | 251.95 mi (405.47 km) |
| Owings Mills to Maryland City (Maryland) | 21.42 mi (34.48 km) |
