| Harker Heights to Cloverleaf (Texas) | 171.41 mi (275.85 km) |
| Harker Heights to Cloverly (Maryland) | 1,288.96 mi (2,074.38 km) |
| Harker Heights to Clovis (California) | 1,321.12 mi (2,126.13 km) |
| Harker Heights to Clovis (New Mexico) | 397.99 mi (640.50 km) |
| Harker Heights to Clute (Texas) | 194.33 mi (312.74 km) |
| Harker Heights to Coachella (California) | 1,093.14 mi (1,759.25 km) |
| Harker Heights to Coalinga (California) | 1,348.15 mi (2,169.63 km) |
| Harker Heights to Coamo (Puerto Rico) | 2,150.37 mi (3,460.68 km) |
| Harker Heights to Coatesville (Pennsylvania) | 1,368.53 mi (2,202.43 km) |
| Harker Heights to Cockeysville (Maryland) | 1,316.23 mi (2,118.27 km) |
| Harker Heights to Cocoa (Florida) | 1,028.37 mi (1,655.00 km) |
| Harker Heights to Cocoa Beach (Florida) | 1,037.47 mi (1,669.65 km) |
| Harker Heights to Coconut Creek (Florida) | 1,107.30 mi (1,782.03 km) |
| Harker Heights to Coeur d'Alene (Idaho) | 1,530.51 mi (2,463.12 km) |
| Harker Heights to Cohoes (New York) | 1,542.10 mi (2,481.78 km) |
