| Welwyn Garden City to Caltagirone | 1,235.14 mi (1,987.76 km) |
| Welwyn Garden City to Caltanissetta | 1,207.52 mi (1,943.31 km) |
| Welwyn Garden City to Calvisano | 655.43 mi (1,054.82 km) |
| Welwyn Garden City to Calvizzano | 1,015.12 mi (1,633.68 km) |
| Welwyn Garden City to Camaiore | 728.24 mi (1,171.99 km) |
| Welwyn Garden City to Cameri | 593.12 mi (954.53 km) |
| Welwyn Garden City to Camisano Vicentino | 694.42 mi (1,117.56 km) |
| Welwyn Garden City to Campagna | 1,057.21 mi (1,701.42 km) |
| Welwyn Garden City to Campagnano di Roma | 890.95 mi (1,433.85 km) |
| Welwyn Garden City to Campi Bisenzio | 760.50 mi (1,223.91 km) |
| Welwyn Garden City to Campi Salentina | 1,169.67 mi (1,882.40 km) |
| Welwyn Garden City to Campiglia Marittima | 785.61 mi (1,264.32 km) |
| Welwyn Garden City to Campobasso | 994.65 mi (1,600.74 km) |
| Welwyn Garden City to Campobello di Licata | 1,217.85 mi (1,959.94 km) |
| Welwyn Garden City to Campobello di Mazara | 1,163.50 mi (1,872.47 km) |
