| Mastic Beach to Cortona | 4,157.66 mi (6,691.12 km) |
| Mastic Beach to Cosenza | 4,489.73 mi (7,225.53 km) |
| Mastic Beach to Cossato | 3,916.84 mi (6,303.55 km) |
| Mastic Beach to Costa Volpino | 3,991.77 mi (6,424.13 km) |
| Mastic Beach to Creazzo | 4,060.46 mi (6,534.67 km) |
| Mastic Beach to Crema | 3,988.62 mi (6,419.07 km) |
| Mastic Beach to Cremona | 4,011.17 mi (6,455.36 km) |
| Mastic Beach to Crevalcore | 4,072.92 mi (6,554.73 km) |
| Mastic Beach to Crispiano | 4,484.00 mi (7,216.30 km) |
| Mastic Beach to Crosia | 4,502.63 mi (7,246.28 km) |
| Mastic Beach to Crotone | 4,536.69 mi (7,301.10 km) |
| Mastic Beach to Cuneo | 3,926.60 mi (6,319.26 km) |
| Mastic Beach to Cuorgne | 3,899.85 mi (6,276.20 km) |
| Mastic Beach to Cusano Milanino | 3,961.28 mi (6,375.07 km) |
| Mastic Beach to Cutro | 4,532.64 mi (7,294.58 km) |
