| Markham to Cadillac (Michigan) | 216.18 mi (347.91 km) |
| Markham to Caguas (Puerto Rico) | 2,058.20 mi (3,312.36 km) |
| Markham to Cahokia (Illinois) | 247.53 mi (398.36 km) |
| Markham to Calabasas (California) | 1,755.81 mi (2,825.71 km) |
| Markham to Caldwell (Idaho) | 1,472.05 mi (2,369.03 km) |
| Markham to Caledonia (Wisconsin) | 83.36 mi (134.15 km) |
| Markham to Calera (Alabama) | 587.82 mi (946.01 km) |
| Markham to Calexico (California) | 1,641.52 mi (2,641.77 km) |
| Markham to Calhoun (Georgia) | 513.42 mi (826.27 km) |
| Markham to California (Maryland) | 634.81 mi (1,021.62 km) |
| Markham to California City (California) | 1,684.72 mi (2,711.29 km) |
| Markham to Callaway (Florida) | 801.04 mi (1,289.15 km) |
| Markham to Calumet City (Illinois) | 7.29 mi (11.73 km) |
| Markham to Calverton (Maryland) | 591.96 mi (952.66 km) |
| Markham to Camano (Washington) | 1,745.78 mi (2,809.56 km) |
