PRESSURE UNIT WORKSPACE

Pressure Converter

Convert pascals, bar, atmospheres, psi, torr, and related pressure units with their reference factors visible.

Reviewed reference factorsValues stay in this browser tabNon-negative absolute-pressure values; gauge and absolute references are not inferred.

Conversion input

Convert a clearly referenced pressure

Enter the pressure and select both units. Confirm whether the source measurement is absolute, gauge, or differential before using the number.

Find a unit9 / 9

Filter by unit name, symbol, or code. Your current selections remain available.

Known value0 / 80

Enter a non-negative pressure magnitude. If your source is gauge pressure, keep that reference explicit outside the unit name.

Convert from

Choose the unit attached to the value you entered.

Convert to

Choose the unit required for your report, estimate, or comparison.

Displayed precision

Choose the maximum decimal places shown. This does not increase source accuracy.

Conversion runs locally after the active reference catalogue loads.

Conversion result

Your checked conversion appears here

Enter a pressure to compare pascals, kilopascals, bar, atmospheres, psi, torr, and inches of mercury.

What this tool delivers

Reference-factor conversion with a visible caveat

The arithmetic changes the unit; it does not change or infer the pressure reference used by the instrument.

What it converts

Converts a pressure magnitude among reviewed SI and commonly used non-SI pressure units through pascals.

What you provide

One non-negative pressure, its exact unit, and separately confirmed absolute, gauge, or differential context.

What you receive

A selected conversion, all available equivalents, the pascal equation path, and a downloadable checking table.

Calculation method

How pressure factors are applied

The source value is multiplied by its pascal factor and divided by the destination factor. Standard atmosphere uses 101,325 pascals; other factors are shown through the same calculation path.

Review the NIST pressure conversion guidance

Quick answers