| Fountain Valley to Chivasso | 6,018.40 mi (9,685.67 km) |
| Fountain Valley to Ciampino | 6,350.01 mi (10,219.35 km) |
| Fountain Valley to Cicciano | 6,457.51 mi (10,392.35 km) |
| Fountain Valley to Cingoli | 6,285.63 mi (10,115.74 km) |
| Fountain Valley to Cinisello Balsamo | 6,043.17 mi (9,725.54 km) |
| Fountain Valley to Cinisi | 6,561.47 mi (10,559.67 km) |
| Fountain Valley to Cirie | 6,006.70 mi (9,666.84 km) |
| Fountain Valley to Ciro Marina | 6,628.11 mi (10,666.92 km) |
| Fountain Valley to Cislago | 6,029.97 mi (9,704.30 km) |
| Fountain Valley to Cisterna di Latina | 6,368.65 mi (10,249.36 km) |
| Fountain Valley to Cisternino | 6,561.43 mi (10,559.60 km) |
| Fountain Valley to Citta di Castello | 6,249.78 mi (10,058.05 km) |
| Fountain Valley to Citta Sant'Angelo | 6,357.83 mi (10,231.94 km) |
| Fountain Valley to Cittadella | 6,118.80 mi (9,847.26 km) |
| Fountain Valley to Cittanova | 6,651.17 mi (10,704.02 km) |
