| Berkhampstead to Nasaud | 1,155.37 mi (1,859.40 km) |
| Berkhampstead to Navodari | 1,430.60 mi (2,302.33 km) |
| Berkhampstead to Negresti-Oas | 1,097.08 mi (1,765.58 km) |
| Berkhampstead to Nehoiu | 1,296.97 mi (2,087.27 km) |
| Berkhampstead to Ocna Mures | 1,159.41 mi (1,865.90 km) |
| Berkhampstead to Odobesti | 1,315.35 mi (2,116.85 km) |
| Berkhampstead to Odorheiu Secuiesc | 1,222.84 mi (1,967.98 km) |
| Berkhampstead to Oltenita | 1,356.17 mi (2,182.54 km) |
| Berkhampstead to Onesti | 1,286.88 mi (2,071.04 km) |
| Berkhampstead to Oradea | 1,056.20 mi (1,699.80 km) |
| Berkhampstead to Orastie | 1,149.43 mi (1,849.84 km) |
| Berkhampstead to Oravita | 1,115.26 mi (1,794.84 km) |
| Berkhampstead to Orsova | 1,156.30 mi (1,860.89 km) |
| Berkhampstead to Otelu Rosu | 1,125.53 mi (1,811.37 km) |
| Berkhampstead to Otopeni | 1,315.41 mi (2,116.95 km) |
