| Sierre to Cernavoda | 1,002.29 mi (1,613.02 km) |
| Sierre to Chitila | 901.37 mi (1,450.62 km) |
| Sierre to Cisnadie | 797.05 mi (1,282.73 km) |
| Sierre to Cluj-Napoca | 762.24 mi (1,226.70 km) |
| Sierre to Codlea | 858.84 mi (1,382.17 km) |
| Sierre to Comanesti | 899.81 mi (1,448.11 km) |
| Sierre to Comarnic | 873.44 mi (1,405.66 km) |
| Sierre to Constanta | 1,034.04 mi (1,664.12 km) |
| Sierre to Corabia | 844.99 mi (1,359.89 km) |
| Sierre to Costesti | 846.07 mi (1,361.62 km) |
| Sierre to Covasna | 892.50 mi (1,436.33 km) |
| Sierre to Craiova | 801.24 mi (1,289.47 km) |
| Sierre to Cristuru Secuiesc | 833.82 mi (1,341.91 km) |
| Sierre to Cugir | 758.20 mi (1,220.20 km) |
| Sierre to Cumpana | 1,031.35 mi (1,659.79 km) |
