| Mastic Beach to Cocentaina | 3,733.33 mi (6,008.21 km) |
| Mastic Beach to Coin | 3,587.86 mi (5,774.11 km) |
| Mastic Beach to Colindres | 3,456.91 mi (5,563.36 km) |
| Mastic Beach to Collado-Villalba | 3,505.94 mi (5,642.27 km) |
| Mastic Beach to Colmenar Viejo | 3,516.81 mi (5,659.76 km) |
| Mastic Beach to Colmenarejo | 3,507.59 mi (5,644.92 km) |
| Mastic Beach to Conil de la Frontera | 3,534.14 mi (5,687.64 km) |
| Mastic Beach to Consuegra | 3,559.09 mi (5,727.79 km) |
| Mastic Beach to Corbera de Llobregat | 3,763.24 mi (6,056.36 km) |
| Mastic Beach to Cordoba | 3,549.04 mi (5,711.62 km) |
| Mastic Beach to Coria del Rio | 3,504.65 mi (5,640.19 km) |
| Mastic Beach to Crevillente | 3,731.13 mi (6,004.68 km) |
| Mastic Beach to Cuarte de Huerva | 3,625.22 mi (5,834.23 km) |
| Mastic Beach to Cubellas | 3,757.52 mi (6,047.15 km) |
| Mastic Beach to Cuellar | 3,469.94 mi (5,584.33 km) |
