| Gravelines to Castelfiorentino | 656.34 mi (1,056.28 km) |
| Gravelines to Castelfranco di Sopra | 672.74 mi (1,082.66 km) |
| Gravelines to Castelfranco di Sotto | 644.40 mi (1,037.07 km) |
| Gravelines to Castelfranco Emilia | 604.60 mi (973.01 km) |
| Gravelines to Castelfranco Veneto | 580.56 mi (934.31 km) |
| Gravelines to Castellabate | 962.20 mi (1,548.51 km) |
| Gravelines to Castellammare del Golfo | 1,038.03 mi (1,670.54 km) |
| Gravelines to Castellammare di Stabia | 924.39 mi (1,487.67 km) |
| Gravelines to Castellamonte | 464.60 mi (747.70 km) |
| Gravelines to Castellana Grotte | 1,001.15 mi (1,611.19 km) |
| Gravelines to Castellaneta | 1,006.43 mi (1,619.70 km) |
| Gravelines to Castellanza | 483.88 mi (778.73 km) |
| Gravelines to Castellarano | 597.76 mi (962.01 km) |
| Gravelines to Castelleone | 527.14 mi (848.34 km) |
| Gravelines to Castelletto sopra Ticino | 470.58 mi (757.33 km) |
