| Biarritz to Cassino | 794.92 mi (1,279.30 km) |
| Biarritz to Castagneto Carducci | 611.06 mi (983.41 km) |
| Biarritz to Castano Primo | 528.07 mi (849.84 km) |
| Biarritz to Castel Bolognese | 666.91 mi (1,073.29 km) |
| Biarritz to Castel Gandolfo | 731.57 mi (1,177.35 km) |
| Biarritz to Castel Goffredo | 606.74 mi (976.45 km) |
| Biarritz to Castel Maggiore | 645.91 mi (1,039.49 km) |
| Biarritz to Castel Mella | 593.22 mi (954.69 km) |
| Biarritz to Castel San Giorgio | 852.25 mi (1,371.56 km) |
| Biarritz to Castel San Giovanni | 554.19 mi (891.88 km) |
| Biarritz to Castel San Pietro Terme | 656.27 mi (1,056.16 km) |
| Biarritz to Castel Volturno | 807.70 mi (1,299.86 km) |
| Biarritz to Castelbuono | 903.41 mi (1,453.90 km) |
| Biarritz to Casteldaccia | 872.67 mi (1,404.43 km) |
| Biarritz to Castelfidardo | 756.40 mi (1,217.31 km) |
