Pressure Conversion Calculator

US Units

Metric Units


Navigating through the complexities of pressure measurements can be challenging, especially when working across different unit systems. Whether you’re a professional in the sciences, an engineer, or just someone dealing with pressure measurements, understanding and converting units like PSI, Pascals, and Bars is crucial. Our Pressure Conversion Calculator is designed to simplify this process, offering you a quick and reliable way to convert between a variety of pressure units.

Understanding Pressure Units

U.S. Units:

  • Pounds per Square Inch (psi): A widely used unit of pressure in the U.S., commonly used in various applications from automotive tire pressure to scuba diving.
  • Inches of Water (inH2O): Often used to measure low-pressure values like gas distribution systems.
  • Inches of Mercury (inHg): Predominantly used in aviation and meteorology for atmospheric pressure readings.
  • Pounds per Square Foot (psf): Utilized in construction and architecture for measuring wind load and other pressure-related calculations.

Metric Units:

  • Pascals (Pa): The SI unit for pressure, used extensively in scientific contexts.
  • Millibars (mbar): Commonly used in meteorology for atmospheric pressure.
  • Kilopascals (kPa): A more convenient unit for higher pressure readings, often seen in industrial settings.
  • Bars (bar): Similar in magnitude to atmospheric pressure, used in various fields including oceanography.
  • Megapascals (MPa): Used for high-pressure readings in industrial and materials science applications.

Our calculator seamlessly bridges these units, providing an intuitive platform for converting pressure measurements across different systems. This tool is particularly useful for students, researchers, and professionals who require quick and accurate conversions without the hassle of manual calculations.

With just a few clicks, you can effortlessly convert between PSI, inH2O, inHg, psf, Pa, mbar, kPa, bar, and MPa. This versatility ensures that you’re well-equipped to handle any pressure-related task, whether it’s for academic research, professional projects, or personal curiosity.

Frequently Asked Questions

Q1: How to Convert PSI to Pascals in Pressure Measurements?

Converting PSI (pounds per square inch) to Pascals is a common requirement in scientific and engineering fields. Our online tool makes this conversion simple and accurate, catering to professionals who need quick and reliable results.

Q2: What is the Best Way to Convert Bar to PSI for Automotive Use?

For automotive professionals and enthusiasts, converting Bar to PSI is essential for tire pressure management. Our conversion calculator provides an easy-to-use interface for these specific automotive pressure conversion needs.

Q3: Can I Convert Atmospheric Pressure from Millibars to Inches of Mercury?

Yes, converting atmospheric pressure readings from Millibars to Inches of Mercury is a frequent task in meteorology. Our tool is designed to offer precise conversions, crucial for weather forecasting and academic research.

Q4: How Do Engineers Convert Megapascals to Kilopascals in Structural Analysis?

In structural engineering, converting Megapascals to Kilopascals is vital for material stress analysis. Our calculator serves as an essential tool for engineers, ensuring accuracy in critical calculations.

Q5: What’s the Easiest Method to Convert Inches of Water to PSI for HVAC Systems?

HVAC professionals often need to convert Inches of Water to PSI when calibrating systems. Our online calculator provides a straightforward solution for this conversion, enhancing efficiency in HVAC operations.


Our Pressure Conversion Calculator is more than just a tool – it’s your go-to solution for all pressure unit conversions. Say goodbye to complicated conversions and hello to efficiency and accuracy. Give it a try now and experience the ease of converting pressure units like never before!