| Harker Heights to Norton Shores (Michigan) | 1,043.60 mi (1,679.52 km) |
| Harker Heights to Norwalk (California) | 1,205.31 mi (1,939.76 km) |
| Harker Heights to Norwalk (Connecticut) | 1,513.43 mi (2,435.63 km) |
| Harker Heights to Norwalk (Iowa) | 753.45 mi (1,212.56 km) |
| Harker Heights to Norwalk (Ohio) | 1,092.18 mi (1,757.69 km) |
| Harker Heights to Norwich (Connecticut) | 1,588.64 mi (2,556.67 km) |
| Harker Heights to Norwood (Ohio) | 930.73 mi (1,497.87 km) |
| Harker Heights to Novato (California) | 1,492.84 mi (2,402.50 km) |
| Harker Heights to Novi (Michigan) | 1,109.05 mi (1,784.85 km) |
| Harker Heights to O'Fallon (Illinois) | 680.33 mi (1,094.88 km) |
| Harker Heights to O'Fallon (Missouri) | 662.16 mi (1,065.65 km) |
| Harker Heights to Oak Creek (Wisconsin) | 976.53 mi (1,571.57 km) |
| Harker Heights to Oak Forest (Illinois) | 912.04 mi (1,467.78 km) |
| Harker Heights to Oak Grove (Oregon) | 1,668.71 mi (2,685.54 km) |
| Harker Heights to Oak Grove (South Carolina) | 980.97 mi (1,578.72 km) |
