| Kilkis to Chitila | 290.30 mi (467.19 km) |
| Kilkis to Cisnadie | 333.07 mi (536.03 km) |
| Kilkis to Cluj-Napoca | 401.18 mi (645.64 km) |
| Kilkis to Codlea | 350.43 mi (563.97 km) |
| Kilkis to Comanesti | 416.59 mi (670.43 km) |
| Kilkis to Comarnic | 326.21 mi (524.99 km) |
| Kilkis to Constanta | 366.54 mi (589.89 km) |
| Kilkis to Corabia | 210.10 mi (338.12 km) |
| Kilkis to Costesti | 274.35 mi (441.53 km) |
| Kilkis to Covasna | 375.11 mi (603.68 km) |
| Kilkis to Craiova | 236.44 mi (380.51 km) |
| Kilkis to Cristuru Secuiesc | 382.43 mi (615.46 km) |
| Kilkis to Cugir | 336.74 mi (541.93 km) |
| Kilkis to Cumpana | 361.26 mi (581.39 km) |
| Kilkis to Curtea de Arges | 301.35 mi (484.97 km) |
