| Waltham to Cocentaina | 3,614.44 mi (5,816.88 km) |
| Waltham to Coin | 3,474.78 mi (5,592.12 km) |
| Waltham to Colindres | 3,333.10 mi (5,364.10 km) |
| Waltham to Collado-Villalba | 3,386.29 mi (5,449.71 km) |
| Waltham to Colmenar Viejo | 3,397.00 mi (5,466.94 km) |
| Waltham to Colmenarejo | 3,388.05 mi (5,452.54 km) |
| Waltham to Conil de la Frontera | 3,422.63 mi (5,508.18 km) |
| Waltham to Consuegra | 3,440.95 mi (5,537.68 km) |
| Waltham to Corbera de Llobregat | 3,639.62 mi (5,857.39 km) |
| Waltham to Cordoba | 3,434.03 mi (5,526.53 km) |
| Waltham to Coria del Rio | 3,391.43 mi (5,457.98 km) |
| Waltham to Crevillente | 3,613.16 mi (5,814.83 km) |
| Waltham to Cuarte de Huerva | 3,502.71 mi (5,637.07 km) |
| Waltham to Cubellas | 3,634.27 mi (5,848.80 km) |
| Waltham to Cuellar | 3,349.32 mi (5,390.21 km) |
