| Brielle to Navodari | 1,235.58 mi (1,988.47 km) |
| Brielle to Negresti-Oas | 898.28 mi (1,445.65 km) |
| Brielle to Nehoiu | 1,101.90 mi (1,773.33 km) |
| Brielle to Ocna Mures | 964.18 mi (1,551.70 km) |
| Brielle to Odobesti | 1,118.49 mi (1,800.03 km) |
| Brielle to Odorheiu Secuiesc | 1,026.31 mi (1,651.68 km) |
| Brielle to Oltenita | 1,164.21 mi (1,873.62 km) |
| Brielle to Onesti | 1,089.18 mi (1,752.87 km) |
| Brielle to Oradea | 861.09 mi (1,385.79 km) |
| Brielle to Orastie | 956.82 mi (1,539.85 km) |
| Brielle to Oravita | 928.52 mi (1,494.31 km) |
| Brielle to Orsova | 969.40 mi (1,560.10 km) |
| Brielle to Otelu Rosu | 935.51 mi (1,505.56 km) |
| Brielle to Otopeni | 1,122.88 mi (1,807.10 km) |
| Brielle to Ovidiu | 1,235.35 mi (1,988.11 km) |
