| Backi Petrovac to Nasaud | 265.32 mi (427.00 km) |
| Backi Petrovac to Navodari | 447.53 mi (720.24 km) |
| Backi Petrovac to Negresti-Oas | 251.20 mi (404.27 km) |
| Backi Petrovac to Nehoiu | 325.84 mi (524.40 km) |
| Backi Petrovac to Ocna Mures | 217.26 mi (349.65 km) |
| Backi Petrovac to Odobesti | 362.54 mi (583.46 km) |
| Backi Petrovac to Odorheiu Secuiesc | 282.58 mi (454.76 km) |
| Backi Petrovac to Oltenita | 356.74 mi (574.12 km) |
| Backi Petrovac to Onesti | 351.07 mi (565.00 km) |
| Backi Petrovac to Oradea | 162.43 mi (261.40 km) |
| Backi Petrovac to Orastie | 177.65 mi (285.90 km) |
| Backi Petrovac to Oravita | 104.30 mi (167.85 km) |
| Backi Petrovac to Orsova | 143.77 mi (231.37 km) |
| Backi Petrovac to Otelu Rosu | 134.30 mi (216.13 km) |
| Backi Petrovac to Otopeni | 321.57 mi (517.52 km) |
