| Gardner to Cocentaina | 4,825.14 mi (7,765.31 km) |
| Gardner to Coin | 4,708.00 mi (7,576.79 km) |
| Gardner to Colindres | 4,519.91 mi (7,274.09 km) |
| Gardner to Collado-Villalba | 4,595.02 mi (7,394.97 km) |
| Gardner to Colmenar Viejo | 4,604.88 mi (7,410.84 km) |
| Gardner to Colmenarejo | 4,597.28 mi (7,398.61 km) |
| Gardner to Conil de la Frontera | 4,660.58 mi (7,500.47 km) |
| Gardner to Consuegra | 4,656.08 mi (7,493.24 km) |
| Gardner to Corbera de Llobregat | 4,824.63 mi (7,764.49 km) |
| Gardner to Cordoba | 4,661.18 mi (7,501.45 km) |
| Gardner to Coria del Rio | 4,624.59 mi (7,442.56 km) |
| Gardner to Crevillente | 4,827.90 mi (7,769.76 km) |
| Gardner to Cuarte de Huerva | 4,695.70 mi (7,557.00 km) |
| Gardner to Cubellas | 4,821.68 mi (7,759.75 km) |
| Gardner to Cuellar | 4,553.66 mi (7,328.41 km) |
