Menu

Convert between pressure units instantly. Our free online pressure converter supports pascal, bar, psi, atm, mmHg, and more with precise, real-time results.

Pressure Converter

Free Pressure Converter, Convert PSI, Bar, Pascal, ATM & Torr Instantly Accurate, instant and free with exact factors — no sign-up, trusted by engineers, stu...

Convert pressure between any units instantly with OmniConverter's free online pressure converter. 1 PSI equals 6,895 pascals, 1 bar equals 100,000 pascals, and 1 atmosphere equals 14.696 PSI. Supports PSI, bar, pascal, atmosphere (atm), and torr. Whether you're checking tyre pressure, monitoring weather, or solving engineering problems, our tool delivers precise conversions.

How It Works

Convert in three simple steps.

1

Enter Your Pressure Value

2

Select Source and Target Pressure Units

3

Get Your Converted Pressure Reading

Common Benchmarks

Reference

1 PaPa

1 Pa

Reference

1 Pabar

0.00001 bar

Reference

1 Paatm

0.0000098692 atm

Reference

1 Papsi

0.0001450377 psi

Reference

1 PaTorr

0.0075006168 Torr

Real-World Use Cases

Pressure conversion is used for checking and inflating tyre pressure (PSI vs bar), industrial and engineering applications (PSI), scuba diving (bar and atm for tank and ambient pressure), and HVAC systems (inches of water column, Pa).

Related Converters

Embed this converter on your site

Free, responsive, no sign-up required. Just paste a snippet.

Get Embed Code

Frequently asked questions

Quick answers to common conversion questions

What is the PSI to Bar to kPa triple table 10-100 PSI?+

Exact: 1 PSI = 0.0689476 bar = 6.89476 kPa. Table 10-100 PSI below shows bar and kPa. Example: 32 PSI (car tyre) = 2.2067 bar = 220.67 kPa.

What is the exact formula for PSI to Bar?+

Bar = PSI ×0.0689476 exactly. Example: 50 PSI ×0.0689476 = 3.44738 bar.

What is the exact formula for Bar to PSI?+

PSI = Bar ×14.5038. Example: 2.5 bar ×14.5038 = 36.26 PSI. Use the Formula & Triple Table below.

How do I convert pascals to bars?+

Divide pascals by 100,000 to get bars.

What is PSI?+

PSI means pounds per square inch, commonly used in tires and hydraulic systems.

How do I convert atm to kPa?+

Multiply atm by 101.325 to get kilopascals.

What is a Torr?+

A Torr is a unit of pressure based on millimeters of mercury, often used in vacuum work.

Can I convert bar to psi?+

Yes. Multiply bar by 14.5038 to get psi.

Why are there many pressure units?+

Different fields use different standards, such as engineering, meteorology, and chemistry.

What is a standard atmosphere?+

One atmosphere is about 101,325 pascals, roughly air pressure at sea level.

How do I convert mmHg to atm?+

Divide mmHg by 760 to estimate atmospheres.

Does pressure conversion depend on altitude?+

The unit conversion itself is fixed, but real-world pressure varies with location and altitude.

Which pressure unit is most common in science?+

Pascals are the SI unit and are widely used in scientific and engineering contexts.

Quick Answer: Pressure Converter

Convert pressure instantly — enter any value and get all units at once. Common pressure conversions include psi to bar (1 psi = 0. Pressure conversion is used in tire pressure monitoring, HVAC systems, scuba diving, weather forecasting, and industrial applications.

How the Pressure Converter Works

Our pressure converter converts between pascal, bar, psi, atmospheres, torr, and mmHg using accurate conversion factors. Enter any pressure value for instant results.

Formula & Sources

Pascal is SI (N/m²). 1 atm = 101325 Pa exact (BIPM); 1 bar = 100,000 Pa; psi from NIST SP 811.

Worked Example

Example: 32 psi to bar — 32 × 0.0689476 = 2.206 bar. 1 atm = 14.6959 psi = 101.325 kPa.

Common Pressure Conversions

Common pressure conversions include psi to bar (1 psi = 0.0689 bar), atmospheres to pascal (1 atm = 101325 Pa), and mmHg to torr (1 mmHg = 1 torr).

When to Use Pressure Conversion

Pressure conversion is used in tire pressure monitoring, HVAC systems, scuba diving, weather forecasting, and industrial applications.

Accuracy & Common Mistakes

All factors are stored unrounded and computed in double precision. We avoid cumulative rounding by converting via a base unit. Always verify critical results with a second source for safety-critical tasks.

Frequently Asked Questions

What is normal tire pressure in bar?

Typical car tires: 2.0–2.5 bar = 29–36 psi. Check door sticker, not tire sidewall.

How many psi is 1 atm?

1 atm = 14.6959 psi = 101.325 kPa exact.

Is 1 bar 14.5 psi?

1 bar = 14.5038 psi. The 14.5 shortcut is fine for rough checks.

Formula & Triple Table: PSI to Bar to kPa 10-100 PSI

Quick reference for common conversions

Formula & Triple Table: PSI to Bar to kPa 10-100 PSI — multiply the From value by the factor to get the To value.
FromToMultiply By
10 PSIbar / kPa0.689 bar / 68.95 kPa
30 PSIbar / kPa2.068 bar / 206.84 kPa
32 PSIbar / kPa2.207 bar / 220.63 kPa
50 PSIbar / kPa3.447 bar / 344.74 kPa
100 PSIbar / kPa6.895 bar / 689.48 kPa
1 PSIbar0.0689476
1 barPSI14.5038
1 PSIkPa6.89476

Popular Pressure comparisons

Featured indexed reference — opens the full chart. More comparisons via the hub.

View all comparisons

Related Converters

People Also Ask

Latest Blog Posts

Tips, guides, and insights about unit conversions