| Rancho Santa Margarita to Chivasso | 6,011.23 mi (9,674.13 km) |
| Rancho Santa Margarita to Ciampino | 6,342.96 mi (10,208.01 km) |
| Rancho Santa Margarita to Cicciano | 6,450.67 mi (10,381.35 km) |
| Rancho Santa Margarita to Cingoli | 6,279.05 mi (10,105.15 km) |
| Rancho Santa Margarita to Cinisello Balsamo | 6,036.32 mi (9,714.52 km) |
| Rancho Santa Margarita to Cinisi | 6,553.74 mi (10,547.23 km) |
| Rancho Santa Margarita to Cirie | 5,999.48 mi (9,655.24 km) |
| Rancho Santa Margarita to Ciro Marina | 6,621.49 mi (10,656.26 km) |
| Rancho Santa Margarita to Cislago | 6,023.10 mi (9,693.25 km) |
| Rancho Santa Margarita to Cisterna di Latina | 6,361.61 mi (10,238.02 km) |
| Rancho Santa Margarita to Cisternino | 6,555.16 mi (10,549.51 km) |
| Rancho Santa Margarita to Citta di Castello | 6,243.03 mi (10,047.19 km) |
| Rancho Santa Margarita to Citta Sant'Angelo | 6,351.23 mi (10,221.31 km) |
| Rancho Santa Margarita to Cittadella | 6,112.45 mi (9,837.04 km) |
| Rancho Santa Margarita to Cittanova | 6,644.10 mi (10,692.65 km) |
