Pascals to Millibars Converter
Enter the pressure in pascals below to convert it to millibars.
Convert Pascals to Millibars
Enter a value in pascals (Pa) to convert to millibars (mbar).
Pascal to Millibar Conversion Table
Table showing various pascal measurements converted to millibars. Click any preset value or arrow to load it into the converter.
How to Convert Pascals to Millibars
To convert pascals to millibars, multiply the pressure by the following conversion ratio: 0.01 millibars/pascal.
Since one pascal is equal to 0.01 millibars, you can use this simple formula to convert:
The pressure in millibars is equal to the pressure in pascals multiplied by 0.01.
For example, here's how to convert 5 pascals to millibars using the formula above.
How Many Millibars Are in a Pascal?
There are 0.01 millibars in a pascal, which is why we use this value in the formula above.
Our pascal to millibar calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Pascals and millibars are both units used to measure pressure. Keep reading to learn more about each unit.
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. [1]
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.
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). [2]
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.
When converting pressure between pascals (Pa) and millibars (mbar), keep full floating-point precision (1 Pa = 0.01 mbar; 1 mbar = 100 Pa) during intermediate calculations and round only the final millibar figure to match your instrument tolerance.
More Pascal & Millibar Conversions
Need to calculate in the opposite direction? Use our millibars to pascals calculator to switch your starting unit immediately. You can also explore related tools such as converting millibars to pascals, converting pascals to hectopascals, or converting pascals to psi.
Convert from Pascals
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — Pascals (Pa) to Millibars (mbar)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Pascal (Pa) & Millibar (mbar)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (Pa to mbar)