| Harper Woods to Cocentaina | 4,156.68 mi (6,689.54 km) |
| Harper Woods to Coin | 4,033.92 mi (6,491.96 km) |
| Harper Woods to Colindres | 3,858.11 mi (6,209.03 km) |
| Harper Woods to Collado-Villalba | 3,926.85 mi (6,319.66 km) |
| Harper Woods to Colmenar Viejo | 3,936.96 mi (6,335.92 km) |
| Harper Woods to Colmenarejo | 3,928.98 mi (6,323.08 km) |
| Harper Woods to Conil de la Frontera | 3,985.59 mi (6,414.18 km) |
| Harper Woods to Consuegra | 3,986.25 mi (6,415.25 km) |
| Harper Woods to Corbera de Llobregat | 4,163.94 mi (6,701.22 km) |
| Harper Woods to Cordoba | 3,988.38 mi (6,418.67 km) |
| Harper Woods to Coria del Rio | 3,950.48 mi (6,357.68 km) |
| Harper Woods to Crevillente | 4,158.34 mi (6,692.21 km) |
| Harper Woods to Cuarte de Huerva | 4,032.29 mi (6,489.35 km) |
| Harper Woods to Cubellas | 4,160.23 mi (6,695.24 km) |
| Harper Woods to Cuellar | 3,886.67 mi (6,255.00 km) |
