Bars to Millipascals Converter
Enter the pressure in bars below to convert it to millipascals.
Convert Bars to Millipascals
Enter a value in bars (bar) to convert to millipascals (mPa).
Bar to Millipascal Conversion Table
Table showing various bar measurements converted to millipascals. Click any preset value or arrow to load it into the converter.
How to Convert Bars to Millipascals
To convert bars to millipascals, multiply the pressure by the following conversion ratio: 100,000,000 millipascals/bar.
Since one bar is equal to 100,000,000 millipascals, you can use this simple formula to convert:
The pressure in millipascals is equal to the pressure in bars multiplied by 100,000,000.
For example, here's how to convert 5 bars to millipascals using the formula above.
How Many Millipascals Are in a Bar?
There are 100,000,000 millipascals in a bar, which is why we use this value in the formula above.
Our bar to millipascal calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Bars and millipascals are both units used to measure pressure. Keep reading to learn more about each unit.
What Is a Bar?
A bar is a unit of pressure equal to 100,000 pascals (Pa), the base unit for pressure. Metric pressure unit equal to 100,000 Pascals (100 kPa). [1]
The bar is classified as a metric and SI-compatible unit of pressure. Bars can be abbreviated as bar; for example, 1 bar can be written as 1 bar.
When working with bars (bar) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, bars (bar) are widely used across large-scale industrial, bulk, and macro-level pressure specifications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Millipascal?
A millipascal is a unit of pressure equal to 1/1,000 of a pascal (0.001 Pa). One-thousandth of a Pascal. [2]
The millipascal is classified as a metric and SI-compatible unit of pressure. Millipascals can be abbreviated as mPa; for example, 1 millipascal can be written as 1 mPa.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millipascal (mPa) a convenient decimal multiple of the pascal (Pa).
In practice, millipascals (mPa) are widely used across fine-tolerance laboratory, analytical, and micro-scale pressure measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting pressure between bars (bar) and millipascals (mPa), keep full floating-point precision (1 bar = 100,000,000 mPa; 1 mPa = 0.00000001 bar) during intermediate calculations and round only the final millipascal figure to match your instrument tolerance.
More Bar & Millipascal Conversions
Need to calculate in the opposite direction? Use our millipascals to bars calculator to switch your starting unit immediately. You can also explore related tools such as converting millipascals to bars, converting bars to psi, or converting bars to atmospheres.
Convert from Bars
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Pressure & Stress))·Pressure Metrology Standard — Bars (bar) to Millipascals (mPa)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Bar (bar) & Millipascal (mPa)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (bar to mPa)