Millibar to Bar Converter
Enter a value to instantly convert between pressure units.
Precision4 dp
1 Millibar = 0.001 Bar
Key Formulas
Pound per Sq. Inch → Bar
bar = psi × 0.0689476Bar → Pound per Sq. Inch
psi = bar × 14.5038Atmosphere → Pound per Sq. Inch
psi = atm × 14.6959Pound per Sq. Inch → Atmosphere
atm = psi × 0.068046Formula
bar = mbar × 0.001Millibar and Bar measure pressure (force per unit area). Millibar is used in various applications, while Bar is standard in industrial and meteorology. Conversion matters when checking tire pressures, weather data, or engineering specifications.
Source: NIST SP 811, Table B.8
Last reviewed: · see our methodology
0Real-World Examples
Millibar to Bar conversion example
1 mbar = 0.001 bar
Millibar to Bar conversion example
5 mbar = 0.005 bar
Millibar to Bar conversion example
10 mbar = 0.01 bar
Millibar to Bar conversion example
25 mbar = 0.025 bar