How many PSI are in 1 bar?

1 bar equals approximately 14.50377 psi (pounds per square inch).

What is 1 standard atmosphere (atm) in pascals?

1 atm equals exactly 101,325 Pascals (Pa), or 1.01325 bar.

A Torr is defined as 1/760th of a standard atmosphere, approximately equal to 1 millimeter of mercury (1 mmHg = 133.322 Pa).

What tire pressure is considered normal, in PSI and bar?

Most passenger car tires are inflated to roughly 30-35 PSI, which converts to about 2.07-2.41 bar — the exact figure is set by the vehicle manufacturer, usually printed on a sticker inside the driver's door.

Why is blood pressure measured in mmHg (Torr) instead of a metric unit?

Blood pressure monitors have used mercury-column measurement (millimeters of mercury) since the 19th century, and the unit stuck even after mercury manometers were largely replaced by digital sensors — 1 mmHg equals 1 Torr, roughly 133.3 pascals.

Pressure Converter

Instant, precise pressure converter with live formula explanations and interactive lookup tables.

TL;DR: Pressure Converter performs exact deterministic conversion across pressure units with zero server latency.

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Mathematical Formula

Reference Conversion Table

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Why Use This Tool?

Pressure Converter switches between metric, imperial, and medical pressure units instantly — useful for reading tire pressure, weather barometric readings, and blood pressure or blood gas measurements that use a different unit than you're used to.

How to Use the Pressure Converter

This converter uses exact international metrology factors to deliver accurate and reliable conversions right inside your web browser. Choose your starting unit and target unit, then type a value — the conversion updates instantly.

Unit	Equal to (in pascals)
1 Kilopascal (kPa)	1,000 Pa
1 Bar	100,000 Pa
1 PSI (lb/in²)	6,894.76 Pa
1 Standard Atmosphere (atm)	101,325 Pa
1 Torr (mmHg)	133.322 Pa

Mathematical Formula & Methodology

Here is the standard mathematical equation used to calculate this result accurately:

P_{\text{target}} = P_{\text{source}} \times \frac{\text{Factor}_{\text{source}}}{\text{Factor}_{\text{target}}}

Formula Variables Explained:
Atmospheric and mechanical pressure conversions across Pascals (Pa), Bar, PSI, and mmHg.

Step-by-Step Worked Example

Converting 32 PSI (car tire pressure) to Bar: $32 \text{ psi} \times 0.0689476 = 2.2063 \text{ bar}$.

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All processing runs locally inside your browser using JavaScript and HTML5 APIs. Your data, files, and inputs are never uploaded to any remote server. Complete privacy by design.

Frequently Asked Questions

: 1 bar equals approximately 14.50377 psi (pounds per square inch).
: 1 atm equals exactly 101,325 Pascals (Pa), or 1.01325 bar.
: A Torr is defined as 1/760th of a standard atmosphere, approximately equal to 1 millimeter of mercury (1 mmHg = 133.322 Pa).
: Most passenger car tires are inflated to roughly 30-35 PSI, which converts to about 2.07-2.41 bar — the exact figure is set by the vehicle manufacturer, usually printed on a sticker inside the driver's door.
: Blood pressure monitors have used mercury-column measurement (millimeters of mercury) since the 19th century, and the unit stuck even after mercury manometers were largely replaced by digital sensors — 1 mmHg equals 1 Torr, roughly 133.3 pascals.

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