| Markham to Carrollwood (Florida) | 980.13 mi (1,577.37 km) |
| Markham to Carson (California) | 1,743.93 mi (2,806.58 km) |
| Markham to Carson City (Nevada) | 1,686.08 mi (2,713.49 km) |
| Markham to Carteret (New Jersey) | 703.77 mi (1,132.61 km) |
| Markham to Cartersville (Georgia) | 537.28 mi (864.67 km) |
| Markham to Carthage (Missouri) | 468.77 mi (754.41 km) |
| Markham to Cary (Illinois) | 51.18 mi (82.37 km) |
| Markham to Cary (North Carolina) | 624.27 mi (1,004.66 km) |
| Markham to Casa de Oro-Mount Helix (California) | 1,713.29 mi (2,757.27 km) |
| Markham to Casa Grande (Arizona) | 1,447.28 mi (2,329.17 km) |
| Markham to Casas Adobes (Arizona) | 1,431.19 mi (2,303.27 km) |
| Markham to Cascades (Virginia) | 570.26 mi (917.75 km) |
| Markham to Casper (Wyoming) | 955.16 mi (1,537.19 km) |
| Markham to Casselberry (Florida) | 962.89 mi (1,549.62 km) |
| Markham to Castaic (California) | 1,743.50 mi (2,805.90 km) |
