How many pascals are in one bar?

Exactly 100,000 pascals. One bar equals 100 kilopascals.

How do I convert psi to bar?

Multiply psi by 0.0689476 to get bar, or divide by 14.5038. So 30 psi is about 2.07 bar.

Pressure Converter — Free Online Pressure Converter

How do I convert pressure between psi, bar, pascal, atm, torr and mmHg?

Type a value into AnyTool Pressure Converter and pick the units. It instantly converts both ways between pascal, kilopascal, megapascal, hectopascal, bar, millibar, standard and technical atmospheres, psi, torr, mmHg, inHg and water-column units, and shows the value in every unit at once in a copyable table. Everything is calculated in your browser, so nothing is uploaded.

Live two-way conversion — type in either field and the other updates
Pa, kPa, MPa, hPa, bar, mbar, atm, technical atmosphere, psi, torr, mmHg, inHg and water columns
See the value in every unit at once, each row copyable
Exact, internationally-defined factors through a pascal base
100% in your browser — no upload, no signup, works offline

What is

Pressure Conversion

Pressure conversion changes a pressure from one unit to another — for example psi to bar. The SI unit is the pascal (Pa), equal to one newton per square metre. Every other unit relates to the pascal by a fixed factor, so a value is multiplied to pascals and then divided into the target unit: 1 bar = 100,000 Pa, 1 standard atmosphere = 101,325 Pa, and 1 psi = 6894.757293168 Pa.

Converters

Related terms

psi to barPascalAtmosphereTorrmmHg

Frequently Asked Questions

The bar is defined as exactly 100,000 pascals, which is 100 kilopascals or 1000 hectopascals. It is close to, but slightly less than, one standard atmosphere (101,325 Pa). One bar is also about 14.5038 psi.

One psi equals 6894.757293168 pascals, and one bar is 100,000 pascals, so 1 psi = 0.0689475729 bar. To convert, multiply the psi value by 0.0689476 (or divide by 14.5038). For example, a 30 psi tyre is about 2.07 bar, and 100 psi is about 6.895 bar.

The torr is defined as exactly 1/760 of a standard atmosphere (101,325 ÷ 760 ≈ 133.322368 Pa), while the millimetre of mercury (mmHg) is a conventional unit based on a fixed mercury density at 0 °C (133.322387415 Pa). They differ by less than two parts per million, so they are interchangeable for everyday and clinical use, but they are not strictly identical — AnyTool lists both.

Almost. The torr is exactly 1/760 atm; mmHg is a conventional unit, and they differ by under two parts per million.

AnyTool Pressure Converter computes every result locally in JavaScript using exact factors through a pascal base. No value is uploaded, there is no tracking, and the page keeps working offline after the first load.

No. Every calculation runs in your browser, so nothing is sent to a server and it works offline.

Detailed Explanation

Methodology

How the Pressure Converter Works

AnyTool Pressure Converter performs every calculation in the browser. Each unit declares a single linear factor relative to a shared pascal base — the exact number of pascals in one of that unit — so any unit converts to any other through pascals without an N-by-N table. The factors are the internationally-agreed definitions: one bar is 100,000 Pa, one standard atmosphere 101,325 Pa, one technical atmosphere 98,066.5 Pa, one psi 6894.757293168 Pa, one torr exactly 1/760 atm (≈ 133.322368 Pa), one mmHg 133.322387415 Pa, one inHg 3386.389 Pa and one millimetre of water 9.80665 Pa. A value is multiplied to pascals and then divided into the target unit.

Fourteen units spanning SI, metric, US/imperial and vacuum scales
The pascal (N/m²) is the shared base; each unit is one exact factor
Conversion is value to base to value, so any unit maps to any other
Editing either field converts both directions live
All arithmetic is client-side JavaScript — no server round-trip

How It Works

All Units, Precision and References

A single input is converted into every unit at once in a copyable table, with the source and target rows highlighted. A decimals control sets precision from 0 to 10 places, and magnitudes that are very large or very small automatically switch to scientific notation so results stay readable. A formula reference and a scale-reference table accompany the converter, and units that need a caveat — such as torr versus mmHg, or the temperature basis of water columns — are documented honestly.

Convert-to-all table shows the value in every unit simultaneously
Each unit row is individually copyable
Adjustable precision from 0 to 10 decimal places
Automatic scientific notation for extreme magnitudes
Built-in formula reference and scale-reference table

Privacy & Security

Privacy and Offline Use

Because all conversion runs in the browser, no value is sent to a server, there is no account or tracking, and the page works offline after first load. The converter is built on a shared, unit-tested conversion engine that other AnyTool unit converters reuse, so behaviour is consistent across the site.

Pressure conversion: in-browser (AnyTool) vs typical online converters
Capability	AnyTool	Typical online converters
Processing	Runs in your browser	Often server-side
Units	Pa, kPa, MPa, hPa, bar, mbar, atm, at, psi, torr, mmHg, inHg, water	Often a smaller subset
Torr vs mmHg	Both listed, difference documented	Usually treated as identical
Two-way input	Edit either field, both update	Usually one-direction with a button
All units at once	Yes, copyable table	Often one target at a time
Precision control	Adjustable 0-10 decimals	Frequently fixed
Works offline	Yes (PWA)	No
Cost / signup	Free, no signup	Often ad-heavy or gated

AnyTool converts every unit locally through a pascal base and uploads nothing.