| Madrid to Cernavoda | 1,631.86 mi (2,626.22 km) |
| Madrid to Chitila | 1,530.48 mi (2,463.07 km) |
| Madrid to Cisnadie | 1,444.78 mi (2,325.15 km) |
| Madrid to Cluj-Napoca | 1,425.85 mi (2,294.68 km) |
| Madrid to Codlea | 1,506.94 mi (2,425.18 km) |
| Madrid to Comanesti | 1,558.61 mi (2,508.34 km) |
| Madrid to Comarnic | 1,514.63 mi (2,437.56 km) |
| Madrid to Constanta | 1,661.93 mi (2,674.61 km) |
| Madrid to Corabia | 1,457.35 mi (2,345.38 km) |
| Madrid to Costesti | 1,476.42 mi (2,376.07 km) |
| Madrid to Covasna | 1,543.23 mi (2,483.59 km) |
| Madrid to Craiova | 1,423.48 mi (2,290.88 km) |
| Madrid to Cristuru Secuiesc | 1,490.59 mi (2,398.87 km) |
| Madrid to Cugir | 1,407.82 mi (2,265.67 km) |
| Madrid to Cumpana | 1,658.24 mi (2,668.69 km) |
