| Markham to Cognac | 4,149.34 mi (6,677.73 km) |
| Markham to Cogolin | 4,524.93 mi (7,282.17 km) |
| Markham to Colmar | 4,370.21 mi (7,033.17 km) |
| Markham to Colombes | 4,141.11 mi (6,664.47 km) |
| Markham to Colomiers | 4,294.11 mi (6,910.71 km) |
| Markham to Combs-la-Ville | 4,162.05 mi (6,698.18 km) |
| Markham to Comines | 4,106.83 mi (6,609.30 km) |
| Markham to Compiegne | 4,146.27 mi (6,672.78 km) |
| Markham to Concarneau | 3,927.90 mi (6,321.35 km) |
| Markham to Conde-sur-l'Escaut | 4,139.74 mi (6,662.26 km) |
| Markham to Conflans-Sainte-Honorine | 4,132.44 mi (6,650.53 km) |
| Markham to Corbas | 4,364.94 mi (7,024.69 km) |
| Markham to Corbeil-Essonnes | 4,160.95 mi (6,696.41 km) |
| Markham to Cormeilles-en-Parisis | 4,137.37 mi (6,658.45 km) |
| Markham to Cosne sur Loire | 4,221.25 mi (6,793.45 km) |
