| Renkum to Navodari | 1,168.53 mi (1,880.56 km) |
| Renkum to Negresti-Oas | 829.26 mi (1,334.57 km) |
| Renkum to Nehoiu | 1,034.93 mi (1,665.55 km) |
| Renkum to Ocna Mures | 897.26 mi (1,444.00 km) |
| Renkum to Odobesti | 1,050.49 mi (1,690.60 km) |
| Renkum to Odorheiu Secuiesc | 958.56 mi (1,542.66 km) |
| Renkum to Oltenita | 1,098.87 mi (1,768.45 km) |
| Renkum to Onesti | 1,020.71 mi (1,642.67 km) |
| Renkum to Oradea | 794.36 mi (1,278.40 km) |
| Renkum to Orastie | 891.37 mi (1,434.53 km) |
| Renkum to Oravita | 866.31 mi (1,394.19 km) |
| Renkum to Orsova | 907.02 mi (1,459.70 km) |
| Renkum to Otelu Rosu | 871.52 mi (1,402.58 km) |
| Renkum to Otopeni | 1,057.28 mi (1,701.53 km) |
| Renkum to Ovidiu | 1,168.40 mi (1,880.36 km) |
