| Harker Heights to Marshall (Minnesota) | 930.73 mi (1,497.87 km) |
| Harker Heights to Marshall (Missouri) | 610.56 mi (982.60 km) |
| Harker Heights to Marshall (Texas) | 218.73 mi (352.01 km) |
| Harker Heights to Marshalltown (Iowa) | 802.39 mi (1,291.32 km) |
| Harker Heights to Marshfield (Wisconsin) | 1,023.49 mi (1,647.14 km) |
| Harker Heights to Martha Lake (Washington) | 1,737.35 mi (2,795.99 km) |
| Harker Heights to Martin (Tennessee) | 622.96 mi (1,002.56 km) |
| Harker Heights to Martinez (California) | 1,468.02 mi (2,362.54 km) |
| Harker Heights to Martinez (Georgia) | 922.91 mi (1,485.29 km) |
| Harker Heights to Martinsburg (West Virginia) | 1,248.42 mi (2,009.13 km) |
| Harker Heights to Martinsville (Indiana) | 855.39 mi (1,376.62 km) |
| Harker Heights to Martinsville (New Jersey) | 1,444.76 mi (2,325.11 km) |
| Harker Heights to Martinsville (Virginia) | 1,089.51 mi (1,753.40 km) |
| Harker Heights to Maryland City (Maryland) | 1,298.70 mi (2,090.06 km) |
| Harker Heights to Maryland Heights (Missouri) | 666.84 mi (1,073.17 km) |
