| Targu Ocna to Cernavoda | 150.73 mi (242.57 km) |
| Targu Ocna to Chitila | 126.27 mi (203.21 km) |
| Targu Ocna to Cisnadie | 124.82 mi (200.89 km) |
| Targu Ocna to Cluj-Napoca | 148.22 mi (238.54 km) |
| Targu Ocna to Codlea | 69.36 mi (111.62 km) |
| Targu Ocna to Comanesti | 13.14 mi (21.15 km) |
| Targu Ocna to Comarnic | 85.48 mi (137.56 km) |
| Targu Ocna to Constanta | 175.83 mi (282.97 km) |
| Targu Ocna to Corabia | 201.66 mi (324.54 km) |
| Targu Ocna to Costesti | 139.58 mi (224.64 km) |
| Targu Ocna to Covasna | 36.34 mi (58.48 km) |
| Targu Ocna to Craiova | 191.41 mi (308.05 km) |
| Targu Ocna to Cristuru Secuiesc | 75.67 mi (121.78 km) |
| Targu Ocna to Cugir | 158.99 mi (255.87 km) |
| Targu Ocna to Cumpana | 176.92 mi (284.72 km) |
