| Harker Heights to Marietta (Georgia) | 788.61 mi (1,269.15 km) |
| Harker Heights to Marietta (Ohio) | 1,078.96 mi (1,736.42 km) |
| Harker Heights to Marina (California) | 1,434.26 mi (2,308.21 km) |
| Harker Heights to Marinette (Wisconsin) | 1,109.81 mi (1,786.07 km) |
| Harker Heights to Marion (Arkansas) | 516.78 mi (831.68 km) |
| Harker Heights to Marion (Illinois) | 676.91 mi (1,089.37 km) |
| Harker Heights to Marion (Indiana) | 936.98 mi (1,507.93 km) |
| Harker Heights to Marion (Iowa) | 829.78 mi (1,335.40 km) |
| Harker Heights to Marion (Ohio) | 1,044.58 mi (1,681.09 km) |
| Harker Heights to Marion Oaks (Florida) | 934.22 mi (1,503.48 km) |
| Harker Heights to Markham (Illinois) | 913.83 mi (1,470.67 km) |
| Harker Heights to Marlborough (Massachusetts) | 1,633.27 mi (2,628.50 km) |
| Harker Heights to Marlton (New Jersey) | 1,411.16 mi (2,271.04 km) |
| Harker Heights to Marquette (Michigan) | 1,201.25 mi (1,933.23 km) |
| Harker Heights to Marrero (Louisiana) | 455.66 mi (733.31 km) |
