🔴 Pressure Converter
Convert between different pressure units including pascals, PSI, bar, atmospheres, torr, mmHg, and more. Perfect for automotive, aviation, engineering, and scientific pressure measurements.
🔴 Pressure Units Reference
Pascal
Pa
Kilopascal
kPa
Bar
bar
PSI
psi
Atmosphere
atm
Torr
Torr
mmHg
mmHg
Table of Contents
What is a Pressure Converter?
A pressure converter is a tool that converts measurements of pressure (force per unit area) from one unit to another. Whether you need to convert PSI to bar, pascals to atmospheres, or torr to mmHg, a pressure converter makes these calculations instant and accurate.
Pressure conversions are essential in many fields including automotive, aviation, scuba diving, engineering, meteorology, and medicine. Different industries and countries use different pressure units, making conversions a common necessity.
Our pressure converter supports 7 different units including metric units (pascals, kilopascals, bar) and imperial/other units (PSI, atmosphere, torr, mmHg), handling everything from tire pressure to deep-sea measurements.
How it Works
Our pressure converter uses precise conversion factors to accurately transform values between different pressure units:
- Select Units: Choose the source unit and target unit from the dropdowns
- Enter Value: Input the pressure measurement you want to convert
- Instant Results: The conversion is calculated automatically in real-time
- Swap Units: Click the swap button to reverse the conversion direction
The converter works by first converting to a base unit (pascals), then converting to the target unit. All conversions use standard, internationally recognized conversion factors for maximum accuracy.
Supported Units
Metric & SI Units
- Pascal (Pa) - Base unit (SI)
- Kilopascal (kPa) - 1,000 pascals
- Bar (bar) - 100,000 pascals
Imperial & Other Units
- PSI (Pounds per Square Inch) - 6,894.76 pascals
- Atmosphere (atm) - 101,325 pascals
- Torr (torr) - 133.322 pascals
- Millimeter of Mercury (mmHg) - 133.322 pascals
Common Use Cases
- Automotive: Convert tire pressure between PSI and bar for different vehicles and regions
- Scuba Diving: Convert water pressure measurements for dive planning and safety calculations
- Aviation: Convert cabin pressure, altitude pressure, and atmospheric measurements
- Medicine: Convert blood pressure measurements between mmHg and other units
- Engineering: Convert pressure specifications for hydraulic systems, pumps, and machinery
- Meteorology: Convert atmospheric pressure readings between different units for weather analysis
- Industrial: Convert pressure measurements for manufacturing, quality control, and safety systems
Conversion Examples
PSI to Bar
1 PSI = 0.0689476 bar
Example: A car tire at 32 PSI is approximately 2.21 bar. A bicycle tire at 60 PSI is approximately 4.14 bar.
Atmosphere to PSI
1 atm = 14.6959 PSI
Example: Standard atmospheric pressure (1 atm) equals 14.7 PSI at sea level. This is the pressure exerted by the Earth's atmosphere.
mmHg to Kilopascals
1 mmHg = 0.133322 kPa
Example: Normal blood pressure (120/80 mmHg) equals approximately 16.0/10.7 kPa. Used in medical contexts.
Bar to PSI
1 bar = 14.5038 PSI
Example: A 2.5 bar tire pressure is approximately 36.26 PSI. Common for European vehicles that use bar instead of PSI.
Frequently Asked Questions
Standard atmospheric pressure at sea level is 1 atmosphere (atm), which equals 101.325 kilopascals, 14.6959 PSI, 760 mmHg, or 760 torr. This is the average pressure exerted by the Earth's atmosphere at sea level and is used as a reference point for many pressure measurements.
Torr and mmHg (millimeters of mercury) are essentially the same unit. One torr equals one mmHg, both equal to 133.322 pascals. The unit is named after Evangelista Torricelli, who invented the barometer. They're commonly used in vacuum measurements and medical applications.
No. All conversions happen entirely in your browser. We don't store, log, or transmit any values you enter. Your calculations are completely private.