| Fort Walton Beach to Cocentaina | 4,753.17 mi (7,649.48 km) |
| Fort Walton Beach to Coin | 4,588.44 mi (7,384.38 km) |
| Fort Walton Beach to Colindres | 4,492.01 mi (7,229.19 km) |
| Fort Walton Beach to Collado-Villalba | 4,529.01 mi (7,288.74 km) |
| Fort Walton Beach to Colmenar Viejo | 4,540.34 mi (7,306.97 km) |
| Fort Walton Beach to Colmenarejo | 4,530.31 mi (7,290.82 km) |
| Fort Walton Beach to Conil de la Frontera | 4,529.28 mi (7,289.17 km) |
| Fort Walton Beach to Consuegra | 4,577.15 mi (7,366.22 km) |
| Fort Walton Beach to Corbera de Llobregat | 4,797.22 mi (7,720.38 km) |
| Fort Walton Beach to Cordoba | 4,556.66 mi (7,333.24 km) |
| Fort Walton Beach to Coria del Rio | 4,506.21 mi (7,252.04 km) |
| Fort Walton Beach to Crevillente | 4,747.99 mi (7,641.16 km) |
| Fort Walton Beach to Cuarte de Huerva | 4,656.39 mi (7,493.73 km) |
| Fort Walton Beach to Cubellas | 4,790.47 mi (7,709.52 km) |
| Fort Walton Beach to Cuellar | 4,496.07 mi (7,235.72 km) |
