| Macomb to Cortona | 4,914.42 mi (7,909.00 km) |
| Macomb to Cosenza | 5,260.28 mi (8,465.60 km) |
| Macomb to Cossato | 4,668.61 mi (7,513.39 km) |
| Macomb to Costa Volpino | 4,733.24 mi (7,617.42 km) |
| Macomb to Creazzo | 4,798.96 mi (7,723.19 km) |
| Macomb to Crema | 4,736.16 mi (7,622.11 km) |
| Macomb to Cremona | 4,759.44 mi (7,659.59 km) |
| Macomb to Crevalcore | 4,820.38 mi (7,757.64 km) |
| Macomb to Crispiano | 5,239.64 mi (8,432.38 km) |
| Macomb to Crosia | 5,268.69 mi (8,479.14 km) |
| Macomb to Crotone | 5,304.90 mi (8,537.41 km) |
| Macomb to Cuneo | 4,691.72 mi (7,550.60 km) |
| Macomb to Cuorgne | 4,655.31 mi (7,492.00 km) |
| Macomb to Cusano Milanino | 4,709.14 mi (7,578.62 km) |
| Macomb to Cutro | 5,301.87 mi (8,532.54 km) |
