| Heule to Navodari | 1,257.94 mi (2,024.46 km) |
| Heule to Negresti-Oas | 928.40 mi (1,494.12 km) |
| Heule to Nehoiu | 1,124.47 mi (1,809.66 km) |
| Heule to Ocna Mures | 987.18 mi (1,588.72 km) |
| Heule to Odobesti | 1,144.18 mi (1,841.38 km) |
| Heule to Odorheiu Secuiesc | 1,051.52 mi (1,692.26 km) |
| Heule to Oltenita | 1,182.02 mi (1,902.29 km) |
| Heule to Onesti | 1,116.56 mi (1,796.94 km) |
| Heule to Oradea | 884.06 mi (1,422.76 km) |
| Heule to Orastie | 975.76 mi (1,570.33 km) |
| Heule to Oravita | 939.86 mi (1,512.56 km) |
| Heule to Orsova | 980.91 mi (1,578.62 km) |
| Heule to Otelu Rosu | 950.90 mi (1,530.33 km) |
| Heule to Otopeni | 1,141.53 mi (1,837.12 km) |
| Heule to Ovidiu | 1,257.43 mi (2,023.63 km) |
