Unit console

Convert units with formula, context and precision

UnitCloud is a local measurement lab for everyday work, engineering, IT, energy, mobility and design. Every conversion shows result, formula, base unit, rounding and the common mistake.

Unit family

Pressure

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

UnitSymbolFormula
PascalPabase
KilopascalkPa1 kPa = 1000 Pa
MegapascalMPa1 MPa = 1,000,000 Pa
barbar1 bar = 100,000 Pa
Millibarmbar1 mbar = 100 Pa
psipsi1 psi ≈ 6894.757 Pa
Atmosphereatm1 atm = 101,325 Pa
TorrTorr1 Torr ≈ 133.322 Pa
Base unitPa

UnitCloud is a calculation aid. Standards, contracts, medical decisions, engineering approvals and official requirements need original sources.

Formulafactor

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

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.

Search and practice paths

Search and practice paths

FormulaTableExamplesCommon mistakeEveryday/engineeringExcel/CSVBatch converterPrint view
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 current as of May 2026. Pressure. Source basis: BIPM SI Brochure · NIST Guide to SI Appendix B.8.

Common questions

Which base unit does Pressure use?

UnitCloud normalises this family through Pa. That keeps tables, direct conversions and batch output consistent.

What is the most common mistake for Pressure?

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

How does UnitCloud round?

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

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