| Mackworth to Cookeville (Tennessee) | 4,045.42 mi (6,510.48 km) |
| Mackworth to Coolidge (Arizona) | 5,173.59 mi (8,326.09 km) |
| Mackworth to Coon Rapids (Minnesota) | 3,899.83 mi (6,276.17 km) |
| Mackworth to Cooper City (Florida) | 4,343.87 mi (6,990.79 km) |
| Mackworth to Coos Bay (Oregon) | 4,965.13 mi (7,990.61 km) |
| Mackworth to Copiague (New York) | 3,352.33 mi (5,395.05 km) |
| Mackworth to Coppell (Texas) | 4,649.28 mi (7,482.29 km) |
| Mackworth to Copperas Cove (Texas) | 4,781.54 mi (7,695.14 km) |
| Mackworth to Coral Gables (Florida) | 4,360.98 mi (7,018.31 km) |
| Mackworth to Coral Springs (Florida) | 4,331.20 mi (6,970.39 km) |
| Mackworth to Coral Terrace (Florida) | 4,360.15 mi (7,016.98 km) |
| Mackworth to Coralville (Iowa) | 4,005.66 mi (6,446.49 km) |
| Mackworth to Coram (New York) | 3,327.49 mi (5,355.09 km) |
| Mackworth to Corcoran (California) | 5,254.72 mi (8,456.65 km) |
| Mackworth to Cordele (Georgia) | 4,184.69 mi (6,734.61 km) |
