Pressure Converter

How to Use the Pressure Converter

Converting pressure units is simple with our online pressure converter tool:

1. Enter the pressure value you want to convert in the input field
2. Select the original unit from the "From Unit" dropdown menu
3. Choose your desired target unit from the "To Unit" dropdown menu
4. Select the number of decimal places for precision
5. Click the "Convert" button to get your result instantly
6. Use the share buttons to share your conversion results

The conversion happens in real-time, and you can easily reset the form to start a new conversion.

About This Pressure Converter

Our pressure converter is a comprehensive tool designed to handle all common pressure unit conversions. Whether you're working in engineering, science, meteorology, or any field that deals with pressure measurements, this tool provides accurate conversions between various pressure units.

Supported Pressure Units:

• Pascal (Pa) - The SI base unit of pressure
• Kilopascal (kPa) - 1,000 Pascals
• Megapascal (MPa) - 1,000,000 Pascals
• Bar - Commonly used in meteorology and engineering
• Millibar (mbar) - 1/1000 of a bar
• PSI (Pounds per square inch) - Common in the US
• Torr - Used in vacuum applications
• mmHg (Millimeters of mercury) - Medical and scientific applications
• Atmosphere (atm) - Standard atmospheric pressure
• Inches of Mercury (inHg) - Weather and aviation
• PSF (Pounds per square foot) - Building and construction
• kg/cm² - Metric engineering unit

Pressure Conversion Formulas

Understanding the mathematical relationships between pressure units helps in manual calculations and verification of results:

Base Conversions to Pascal (Pa):

Unit	Conversion to Pascal	Example
Bar	1 bar = 100,000 Pa	2 bar = 200,000 Pa
PSI	1 psi = 6,894.76 Pa	10 psi = 68,947.6 Pa
Atmosphere	1 atm = 101,325 Pa	2 atm = 202,650 Pa
Torr	1 Torr = 133.322 Pa	760 Torr = 101,325 Pa
mmHg	1 mmHg = 133.322 Pa	760 mmHg = 101,325 Pa

Common Pressure Conversion Examples

Here are some frequently used pressure conversions to help you understand the relationships between different units:

Atmospheric Pressure Conversions:

• 1 atmosphere (atm) = 14.696 PSI
• 1 atmosphere (atm) = 1.01325 bar
• 1 atmosphere (atm) = 760 mmHg
• 1 atmosphere (atm) = 760 Torr
• 1 atmosphere (atm) = 29.92 inHg

Industrial Applications:

• Tire pressure: 30 PSI = 2.07 bar = 206.8 kPa
• Boiler pressure: 15 bar = 217.56 PSI = 1,500 kPa
• Hydraulic systems: 3000 PSI = 206.8 bar = 20.68 MPa
• Vacuum systems: 1 Torr = 1.33 mbar = 0.00131 atm

Use Cases and Applications

Pressure conversion is essential in many fields and everyday situations:

Engineering and Manufacturing:

• Hydraulic and pneumatic system design
• Pressure vessel calculations
• Pump and compressor specifications
• Material testing and quality control

Automotive Industry:

• Tire pressure monitoring and adjustment
• Engine compression ratio calculations
• Brake system pressure specifications
• Fuel system pressure requirements

Weather and Aviation:

• Barometric pressure readings
• Altitude pressure calculations
• Weather forecasting and analysis
• Aircraft cabin pressure management

Medical and Laboratory:

• Blood pressure measurements
• Vacuum chamber operations
• Gas chromatography pressure settings
• Medical equipment calibration

Frequently Asked Questions (FAQ)

What is pressure?

Pressure is the force applied perpendicular to the surface of an object per unit area. It's measured in various units depending on the application and region.

What's the difference between gauge pressure and absolute pressure?

Gauge pressure measures pressure relative to atmospheric pressure, while absolute pressure measures pressure relative to a perfect vacuum. Absolute pressure = Gauge pressure + Atmospheric pressure.

Why are there so many pressure units?

Different industries and regions developed their own pressure units based on practical applications. For example, PSI is common in the US automotive industry, while bar is preferred in European engineering applications.

How accurate is this pressure converter?

Our converter uses precise conversion factors and provides results accurate to 6 decimal places. The accuracy is sufficient for most practical applications.

Can I convert negative pressures (vacuum)?

Yes, you can enter negative values to convert vacuum pressures. However, note that absolute pressure cannot be negative - only gauge pressure can be negative.

What is standard atmospheric pressure?

Standard atmospheric pressure at sea level is defined as exactly 101,325 Pa (1.01325 bar, 14.696 PSI, or 760 mmHg).