| Mackworth to Castle Rock (Colorado) | 4,594.25 mi (7,393.73 km) |
| Mackworth to Castro Valley (California) | 5,235.31 mi (8,425.42 km) |
| Mackworth to Catalina Foothills (Arizona) | 5,186.96 mi (8,347.61 km) |
| Mackworth to Cataño (Puerto Rico) | 4,156.64 mi (6,689.46 km) |
| Mackworth to Cathedral City (California) | 5,286.48 mi (8,507.77 km) |
| Mackworth to Catonsville (Maryland) | 3,549.98 mi (5,713.13 km) |
| Mackworth to Cave Spring (Virginia) | 3,775.70 mi (6,076.40 km) |
| Mackworth to Cayce (South Carolina) | 3,976.03 mi (6,398.80 km) |
| Mackworth to Cayey (Puerto Rico) | 4,174.78 mi (6,718.66 km) |
| Mackworth to Cedar City (Utah) | 4,960.46 mi (7,983.09 km) |
| Mackworth to Cedar Falls (Iowa) | 3,997.08 mi (6,432.67 km) |
| Mackworth to Cedar Hill (Texas) | 4,668.21 mi (7,512.76 km) |
| Mackworth to Cedar Lake (Indiana) | 3,867.00 mi (6,223.33 km) |
| Mackworth to Cedar Mill (Oregon) | 4,801.63 mi (7,727.47 km) |
| Mackworth to Cedar Park (Texas) | 4,810.27 mi (7,741.38 km) |
