| Forest to Navodari | 1,211.01 mi (1,948.93 km) |
| Forest to Negresti-Oas | 880.84 mi (1,417.58 km) |
| Forest to Nehoiu | 1,077.48 mi (1,734.04 km) |
| Forest to Ocna Mures | 940.12 mi (1,512.98 km) |
| Forest to Odobesti | 1,096.92 mi (1,765.32 km) |
| Forest to Odorheiu Secuiesc | 1,004.28 mi (1,616.23 km) |
| Forest to Oltenita | 1,135.61 mi (1,827.59 km) |
| Forest to Onesti | 1,069.18 mi (1,720.68 km) |
| Forest to Oradea | 836.97 mi (1,346.97 km) |
| Forest to Orastie | 929.13 mi (1,495.29 km) |
| Forest to Oravita | 894.34 mi (1,439.30 km) |
| Forest to Orsova | 935.38 mi (1,505.34 km) |
| Forest to Otelu Rosu | 904.74 mi (1,456.04 km) |
| Forest to Otopeni | 1,094.99 mi (1,762.22 km) |
| Forest to Ovidiu | 1,210.52 mi (1,948.15 km) |
