| Harper Woods to Cognac | 3,916.24 mi (6,302.58 km) |
| Harper Woods to Cogolin | 4,292.80 mi (6,908.60 km) |
| Harper Woods to Colmar | 4,147.11 mi (6,674.13 km) |
| Harper Woods to Colombes | 3,915.69 mi (6,301.70 km) |
| Harper Woods to Colomiers | 4,058.83 mi (6,532.05 km) |
| Harper Woods to Combs-la-Ville | 3,936.37 mi (6,334.97 km) |
| Harper Woods to Comines | 3,885.78 mi (6,253.55 km) |
| Harper Woods to Compiegne | 3,922.27 mi (6,312.28 km) |
| Harper Woods to Concarneau | 3,696.32 mi (5,948.65 km) |
| Harper Woods to Conde-sur-l'Escaut | 3,918.45 mi (6,306.14 km) |
| Harper Woods to Conflans-Sainte-Honorine | 3,907.07 mi (6,287.82 km) |
| Harper Woods to Corbas | 4,135.50 mi (6,655.45 km) |
| Harper Woods to Corbeil-Essonnes | 3,935.10 mi (6,332.93 km) |
| Harper Woods to Cormeilles-en-Parisis | 3,912.02 mi (6,295.78 km) |
| Harper Woods to Cosne sur Loire | 3,993.44 mi (6,426.82 km) |
