| Rancho Santa Margarita to Castrovillari | 6,567.16 mi (10,568.82 km) |
| Rancho Santa Margarita to Catania | 6,657.56 mi (10,714.30 km) |
| Rancho Santa Margarita to Catanzaro | 6,630.60 mi (10,670.92 km) |
| Rancho Santa Margarita to Cattolica | 6,231.66 mi (10,028.88 km) |
| Rancho Santa Margarita to Cava de' Tirreni | 6,470.55 mi (10,413.34 km) |
| Rancho Santa Margarita to Cavallino | 6,602.10 mi (10,625.05 km) |
| Rancho Santa Margarita to Cavarzere | 6,148.92 mi (9,895.72 km) |
| Rancho Santa Margarita to Cave | 6,352.96 mi (10,224.11 km) |
| Rancho Santa Margarita to Cavriago | 6,122.82 mi (9,853.72 km) |
| Rancho Santa Margarita to Cavriglia | 6,215.56 mi (10,002.98 km) |
| Rancho Santa Margarita to Cazzago San Martino | 6,060.66 mi (9,753.68 km) |
| Rancho Santa Margarita to Ceccano | 6,379.39 mi (10,266.64 km) |
| Rancho Santa Margarita to Cecina | 6,194.49 mi (9,969.07 km) |
| Rancho Santa Margarita to Cefalu | 6,592.27 mi (10,609.24 km) |
| Rancho Santa Margarita to Ceglie Messapico | 6,561.87 mi (10,560.30 km) |
