| Horsforth to Caguas (Puerto Rico) | 4,169.36 mi (6,709.94 km) |
| Horsforth to Cahokia (Illinois) | 4,076.29 mi (6,560.16 km) |
| Horsforth to Calabasas (California) | 5,295.04 mi (8,521.55 km) |
| Horsforth to Caldwell (Idaho) | 4,689.61 mi (7,547.20 km) |
| Horsforth to Caledonia (Wisconsin) | 3,783.70 mi (6,089.28 km) |
| Horsforth to Calera (Alabama) | 4,221.13 mi (6,793.26 km) |
| Horsforth to Calexico (California) | 5,278.69 mi (8,495.22 km) |
| Horsforth to Calhoun (Georgia) | 4,081.48 mi (6,568.51 km) |
| Horsforth to California (Maryland) | 3,564.17 mi (5,735.97 km) |
| Horsforth to California City (California) | 5,211.25 mi (8,386.70 km) |
| Horsforth to Callaway (Florida) | 4,328.70 mi (6,966.37 km) |
| Horsforth to Calumet City (Illinois) | 3,828.74 mi (6,161.76 km) |
| Horsforth to Calverton (Maryland) | 3,546.03 mi (5,706.79 km) |
| Horsforth to Camano (Washington) | 4,588.79 mi (7,384.95 km) |
| Horsforth to Camarillo (California) | 5,301.26 mi (8,531.56 km) |
