| Harker Heights to Castelfidardo | 5,701.77 mi (9,176.11 km) |
| Harker Heights to Castelfiorentino | 5,591.15 mi (8,998.09 km) |
| Harker Heights to Castelfranco di Sopra | 5,614.49 mi (9,035.66 km) |
| Harker Heights to Castelfranco di Sotto | 5,578.31 mi (8,977.42 km) |
| Harker Heights to Castelfranco Emilia | 5,555.50 mi (8,940.71 km) |
| Harker Heights to Castelfranco Veneto | 5,548.51 mi (8,929.47 km) |
| Harker Heights to Castellabate | 5,891.82 mi (9,481.96 km) |
| Harker Heights to Castellammare del Golfo | 5,896.58 mi (9,489.63 km) |
| Harker Heights to Castellammare di Stabia | 5,854.65 mi (9,422.15 km) |
| Harker Heights to Castellamonte | 5,389.44 mi (8,673.47 km) |
| Harker Heights to Castellana Grotte | 5,957.40 mi (9,587.51 km) |
| Harker Heights to Castellaneta | 5,958.68 mi (9,589.57 km) |
| Harker Heights to Castellanza | 5,429.06 mi (8,737.23 km) |
| Harker Heights to Castellarano | 5,545.75 mi (8,925.02 km) |
| Harker Heights to Castelleone | 5,476.10 mi (8,812.94 km) |
