| Barsbuttel to Navodari | 1,047.78 mi (1,686.24 km) |
| Barsbuttel to Negresti-Oas | 699.20 mi (1,125.26 km) |
| Barsbuttel to Nehoiu | 916.92 mi (1,475.64 km) |
| Barsbuttel to Ocna Mures | 782.61 mi (1,259.49 km) |
| Barsbuttel to Odobesti | 924.47 mi (1,487.80 km) |
| Barsbuttel to Odorheiu Secuiesc | 836.27 mi (1,345.85 km) |
| Barsbuttel to Oltenita | 990.85 mi (1,594.62 km) |
| Barsbuttel to Onesti | 891.36 mi (1,434.51 km) |
| Barsbuttel to Oradea | 684.22 mi (1,101.15 km) |
| Barsbuttel to Orastie | 787.33 mi (1,267.09 km) |
| Barsbuttel to Oravita | 783.15 mi (1,260.36 km) |
| Barsbuttel to Orsova | 821.57 mi (1,322.19 km) |
| Barsbuttel to Otelu Rosu | 777.52 mi (1,251.30 km) |
| Barsbuttel to Otopeni | 948.33 mi (1,526.20 km) |
| Barsbuttel to Ovidiu | 1,048.35 mi (1,687.16 km) |
