Bars to Megapascals Converter
Enter the pressure in bars below to convert it to megapascals.
Convert Bars to Megapascals
Enter a value in bars (bar) to convert to megapascals (MPa).
Bar to Megapascal Conversion Table
Table showing various bar measurements converted to megapascals. Click any preset value or arrow to load it into the converter.
How to Convert Bars to Megapascals
To convert bars to megapascals, multiply the pressure by the following conversion ratio: 0.1 megapascals/bar.
Since one bar is equal to 0.1 megapascals, you can use this simple formula to convert:
The pressure in megapascals is equal to the pressure in bars multiplied by 0.1.
For example, here's how to convert 100 bars to megapascals using the formula above.
How Many Megapascals Are in a Bar?
There are 0.1 megapascals in a bar, which is why we use this value in the formula above.
Our bar to megapascal calculator automatically converts your pressure measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Bars and megapascals 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 Megapascal?
A megapascal is a unit of pressure equal to 1,000,000 pascals (Pa), the base unit for pressure. Equal to 1,000,000 Pascals (identically 1 N/mm²). [2]
The megapascal is classified as an International System of Units (SI) unit of pressure. Megapascals can be abbreviated as MPa; for example, 1 megapascal can be written as 1 MPa.
In the metric system, "mega" is the standard SI prefix for millions, or 10⁶. This makes the megapascal (MPa) a convenient decimal multiple of the pascal (Pa).
In practice, megapascals (MPa) are widely used across large-scale industrial, bulk, and macro-level pressure specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting pressure between bars (bar) and megapascals (MPa), keep full floating-point precision (1 bar = 0.1 MPa; 1 MPa = 10 bar) during intermediate calculations and round only the final megapascal figure to match your instrument tolerance.
More Bar & Megapascal Conversions
Need to calculate in the opposite direction? Use our megapascals to bars converter (MPa to bar) to switch your starting unit immediately. You can also explore related tools such as converting psi to megapascals, converting pascals to megapascals, or converting bars to psi.
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 Megapascals (MPa)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Pascal (Pa))·Unit Specifications: Bar (bar) & Megapascal (MPa)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Mechanics)·Conversion Factors & Mathematical Basis (bar to MPa)