Conversions

Pressure Converter

Convert pressure between psi, pascals, kilopascals, bar and atmospheres.

Free online toolWorks in your browserNo sign-up required

Pressure Converter

Enable JavaScript to use the interactive calculator; the example and formula are described below.

Explore this topic

Pace, Speed & Unit Conversions

Running and walking pace, speed relationships and common everyday unit-conversion formulas.

Topic hub →

How to use this pressure converter

Enter the requested values above and select Calculate. The result updates immediately on the page, so you can change one value and compare different scenarios without leaving the calculator.

Formula and method

Values are converted through pascals as a common base unit.

Example

Convert tire pressure in psi to kPa or bar.

What this calculator is useful for

Convert pressure between psi, pascals, kilopascals, bar and atmospheres. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.

Pressure conversion reference

This converter uses pascals as the common base unit, then converts the result into the selected output unit. The built-in factors are 1 psi = 6,894.757293 Pa, 1 kPa = 1,000 Pa, 1 bar = 100,000 Pa and 1 standard atmosphere = 101,325 Pa.

Converted value = input × (from-unit factor in Pa) ÷ (to-unit factor in Pa)

Common pressure examples

A tire pressure of 35 psi is about 241.3 kPa or 2.413 bar. One standard atmosphere is 101.325 kPa, which is also about 14.696 psi. These conversions are useful for tire-pressure specifications, equipment documentation, weather or engineering references that use different pressure units.

Pressure Converter: a practical example

One pound per square inch (psi) equals about 6.895 kilopascals.

What the result means

Confirm whether the instrument reading is gauge or absolute pressure before comparing.

Limits to consider

The unit converter changes units but does not add atmospheric pressure or convert gauge to absolute readings.

Related tools: Length Converter · Weight Converter

Frequently asked questions

What does the Pressure Converter calculate?

Convert pressure between psi, pascals, kilopascals, bar and atmospheres.

How does the calculation work?

Values are converted through pascals as a common base unit.

Is this calculator free?

Yes. ERICH Calculators is free to use and no account is required.

Transparency

Method, assumptions & corrections

See how formulas, sources and limitations are handled across ERICH Calculators.