Convert

Megapascal to bar

Exact answer: 1 MPa = 10 bar (exact – SI decimal prefix)

Megapascal and bar both belong to the Pressure family. The difference is a decimal prefix, so the factor is a clean power of ten. Pressure appears in tyre data, weather reports, hydraulics, gas cylinders and vacuum technology.

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What do you want to convert?

From0.1 MPa

Result1 bar

Factor1 MPa = 10 bar

Source basisBIPM SI Brochure · NIST Guide to SI Appendix B.8

Examples

010.1 MPa = 1 bar

Example value from the reference table. Internal calculation uses stored factors; display output is rounded.

02Common mistake

bar, psi and atm appear in different fields. Tyre, weather and lab values need context.

03Base unit: Pa

1 MPa = 1000000 Pa. Then the value is converted through the base unit Pa into bar.

Table

Megapascal to bar
Megapascal	bar
0.1	1
0.5	5
1	10
2	20
5	50
10	100

Formula

1 MPa = 1000000 Pa. Then the value is converted through the base unit Pa into bar.

Sources

BIPM SI BrochureSI base units, prefixes and official SI context.NIST Guide to SI Appendix B.8Alphabetical conversion factors including pressure and force units.

Related conversions

bar to psibar → psiPressure psi to barpsi → barPressure Atmosphere to baratm → barPressure bar to Kilopascalbar → kPaPressure

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Factor origin

Factors come from the stored source family and are not derived from rounded display values.

Rounding rule

UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.

When not to use

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.

Citation

Citation note: UnitCloud, conversion with formula, sources reviewed: September 2026. Pressure. Source basis: BIPM SI Brochure · NIST Guide to SI Appendix B.8.

Common questions

What is the factor for Megapascal to bar?

1 MPa = 10 bar

Which formula does Megapascal to bar use?

1 MPa = 1000000 Pa. Then the value is converted through the base unit Pa into bar.

What is the most common mistake?

bar, psi and atm appear in different fields. Tyre, weather and lab values need context.

When should I verify the result?

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.