| Sumter to Cernavoda | 5,410.60 mi (8,707.52 km) |
| Sumter to Chitila | 5,321.67 mi (8,564.40 km) |
| Sumter to Cisnadie | 5,200.94 mi (8,370.10 km) |
| Sumter to Cluj-Napoca | 5,138.07 mi (8,268.93 km) |
| Sumter to Codlea | 5,253.12 mi (8,454.08 km) |
| Sumter to Comanesti | 5,263.70 mi (8,471.11 km) |
| Sumter to Comarnic | 5,278.30 mi (8,494.61 km) |
| Sumter to Constanta | 5,441.47 mi (8,757.20 km) |
| Sumter to Corabia | 5,290.52 mi (8,514.27 km) |
| Sumter to Costesti | 5,270.81 mi (8,482.55 km) |
| Sumter to Covasna | 5,276.41 mi (8,491.56 km) |
| Sumter to Craiova | 5,240.58 mi (8,433.90 km) |
| Sumter to Cristuru Secuiesc | 5,213.68 mi (8,390.62 km) |
| Sumter to Cugir | 5,164.34 mi (8,311.21 km) |
| Sumter to Cumpana | 5,440.63 mi (8,755.85 km) |
