Millibars to Pascals Converter
Enter the pressure in millibars below to convert it to pascals.
Convert Millibars to Pascals
Enter a value in millibars (mbar) to convert to pascals (Pa).
Millibar to Pascal Conversion Table
Table showing various millibar measurements converted to pascals. Click any preset value or arrow to load it into the converter.
How to Convert Millibars to Pascals
To convert millibars to pascals, multiply the pressure by the following conversion ratio: 100 pascals/millibar.
Since one millibar is equal to 100 pascals, you can use this simple formula to convert:
The pressure in pascals is equal to the pressure in millibars multiplied by 100.
For example, here's how to convert 5 millibars to pascals using the formula above.
How Many Pascals Are in a Millibar?
There are 100 pascals in a millibar, which is why we use this value in the formula above.
Our millibar to pascal calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Millibars and pascals are both units used to measure pressure. Keep reading to learn more about each unit.
What Is a Millibar?
A millibar is a unit of pressure equal to 100 pascals (Pa), the base unit for pressure. Meteorological pressure unit equal to 1/1000 of a bar (100 Pa = 1 hPa). [1]
The millibar is classified as a metric and SI-compatible unit of pressure. Millibars can be abbreviated as mbar; for example, 1 millibar can be written as 1 mbar.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millibar (mbar) a convenient decimal multiple of the bar (100,000 Pa).
In practice, millibars (mbar) are widely used across standard pressure applications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Pascal?
SI derived unit of pressure equal to 1 Newton per square meter (N/m²). It serves as a primary reference unit for measuring pressure across scientific and practical applications. [2]
The pascal is classified as an International System of Units (SI) unit of pressure. Pascals can be abbreviated as Pa; for example, 1 pascal can be written as 1 Pa.
As the primary coherent reference unit for pressure in this category, all other pressure units are mathematically anchored to the pascal (Pa).
In practice, pascals (Pa) are widely used across standard pressure applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting pressure between millibars (mbar) and pascals (Pa), keep full floating-point precision (1 mbar = 100 Pa; 1 Pa = 0.01 mbar) during intermediate calculations and round only the final pascal figure to match your instrument tolerance.
More Millibar & Pascal Conversions
Need to calculate in the opposite direction? Use our pascals to millibars calculator to switch your starting unit immediately. You can also explore related tools such as converting pascals to millibars, converting hectopascals to pascals, or converting megapascals to pascals.
Convert from Millibars
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — Millibars (mbar) to Pascals (Pa)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Millibar (mbar) & Pascal (Pa)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (mbar to Pa)