| Rancho Santa Margarita to Cernavoda | 6,632.72 mi (10,674.33 km) |
| Rancho Santa Margarita to Chitila | 6,573.38 mi (10,578.84 km) |
| Rancho Santa Margarita to Cisnadie | 6,456.41 mi (10,390.59 km) |
| Rancho Santa Margarita to Cluj-Napoca | 6,380.10 mi (10,267.78 km) |
| Rancho Santa Margarita to Codlea | 6,489.12 mi (10,443.23 km) |
| Rancho Santa Margarita to Comanesti | 6,469.07 mi (10,410.96 km) |
| Rancho Santa Margarita to Comarnic | 6,520.43 mi (10,493.61 km) |
| Rancho Santa Margarita to Constanta | 6,657.10 mi (10,713.57 km) |
| Rancho Santa Margarita to Corabia | 6,580.17 mi (10,589.77 km) |
| Rancho Santa Margarita to Costesti | 6,536.49 mi (10,519.47 km) |
| Rancho Santa Margarita to Covasna | 6,497.77 mi (10,457.15 km) |
| Rancho Santa Margarita to Craiova | 6,529.44 mi (10,508.12 km) |
| Rancho Santa Margarita to Cristuru Secuiesc | 6,443.74 mi (10,370.20 km) |
| Rancho Santa Margarita to Cugir | 6,428.94 mi (10,346.38 km) |
| Rancho Santa Margarita to Cumpana | 6,658.61 mi (10,715.99 km) |
