| Biarritz to Ciampino | 728.08 mi (1,171.74 km) |
| Biarritz to Cicciano | 840.11 mi (1,352.03 km) |
| Biarritz to Cingoli | 740.59 mi (1,191.87 km) |
| Biarritz to Cinisello Balsamo | 549.39 mi (884.16 km) |
| Biarritz to Cinisi | 848.26 mi (1,365.15 km) |
| Biarritz to Cirie | 468.20 mi (753.50 km) |
| Biarritz to Ciro Marina | 1,006.50 mi (1,619.80 km) |
| Biarritz to Cislago | 538.98 mi (867.40 km) |
| Biarritz to Cisterna di Latina | 743.09 mi (1,195.89 km) |
| Biarritz to Cisternino | 989.63 mi (1,592.66 km) |
| Biarritz to Citta di Castello | 691.38 mi (1,112.66 km) |
| Biarritz to Citta Sant'Angelo | 790.45 mi (1,272.11 km) |
| Biarritz to Cittadella | 672.87 mi (1,082.87 km) |
| Biarritz to Cittanova | 984.64 mi (1,584.62 km) |
| Biarritz to Cividale del Friuli | 755.90 mi (1,216.50 km) |
