| Targu Ocna to Devnya | 216.69 mi (348.72 km) |
| Targu Ocna to Dimitrovgrad | 296.60 mi (477.33 km) |
| Targu Ocna to Dobrich | 196.64 mi (316.46 km) |
| Targu Ocna to Dospat | 342.33 mi (550.93 km) |
| Targu Ocna to Dupnitsa | 326.97 mi (526.21 km) |
| Targu Ocna to Elhovo | 284.21 mi (457.40 km) |
| Targu Ocna to Etropole | 270.80 mi (435.80 km) |
| Targu Ocna to Gabrovo | 244.18 mi (392.97 km) |
| Targu Ocna to Gorna Oryahovitsa | 222.06 mi (357.36 km) |
| Targu Ocna to Gotse Delchev | 355.87 mi (572.72 km) |
| Targu Ocna to Harmanli | 302.44 mi (486.73 km) |
| Targu Ocna to Haskovo | 304.83 mi (490.58 km) |
| Targu Ocna to Ihtiman | 299.40 mi (481.84 km) |
| Targu Ocna to Isperih | 177.41 mi (285.52 km) |
| Targu Ocna to Kardzhali | 325.90 mi (524.49 km) |
