Pressure Converter
Convert between pascal, bar, PSI, atm, torr and more.
What is Pressure Converter?
A pressure converter is an online tool that translates pressure measurements between the many different units used in science, engineering, meteorology, medicine, and industry. It converts between pascals (Pa), kilopascals (kPa), megapascals (MPa), bar, millibar, atmospheres (atm), pounds per square inch (psi), torr, millimeters of mercury (mmHg), and more. Because pressure units vary widely by field and region, this tool is essential for cross-discipline and cross-border work.
Pressure is measured differently depending on the context. Tire pressure in the United States uses psi, while European standards often use bar or kPa. Blood pressure is measured in mmHg worldwide. Weather forecasts use millibars or hectopascals (hPa). Engineering specifications use megapascals or bar. Industrial hydraulics rely on psi and bar. A single pressure value may need to be expressed in multiple units when communicating across teams or following international standards.
This tool covers all major pressure units accurately, including the subtle difference between gauge pressure and absolute pressure where relevant. It is widely used by automotive technicians, nurses and doctors, meteorologists, mechanical engineers, scuba divers, and chemistry students.
How to Use Pressure Converter
- 1Step 1: Open the Pressure Converter and find the numeric input field where you will enter the pressure value you need to convert to other measurement units.
- 2Step 2: Type the pressure value you are working with — for example, '14.7' for standard atmospheric pressure in psi, or '1013.25' for the same value in millibars.
- 3Step 3: Select your source unit from the dropdown, choosing from pascals, kPa, MPa, bar, atm, psi, torr, mmHg, or other available units.
- 4Step 4: Read the converted values displayed instantly across all supported units in the results panel — from pascals to psi to atmospheres and beyond.
- 5Step 5: Apply the converted pressure value to your tire inflation record, engineering calculation, weather report, or medical documentation as needed.
Benefits of Using Pressure Converter
- ✓Cross-Industry Applicability: Covers pressure units from every major field — medicine (mmHg), meteorology (hPa), automotive (psi and bar), and engineering (MPa) — in one tool.
- ✓Tire Pressure Management: Converts between psi and bar for vehicle tires instantly, helping drivers and mechanics work with both US and European specifications correctly.
- ✓Medical and Clinical Use: Converts blood pressure readings between mmHg and kPa, supporting healthcare professionals working with international medical equipment and documentation.
- ✓Weather Data Interpretation: Converts between millibars, hectopascals, and atmospheres, making meteorological data from different national weather services directly comparable.
- ✓Engineering Specification Compliance: Accurately converts between bar, MPa, and psi for hydraulic systems, pressure vessels, and component specifications in international engineering projects.
- ✓Scientific Education: Helps students understand the relationship between pascals (the SI standard) and all derived and non-SI units commonly encountered in physics and chemistry courses.
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About Pressure Converter
Pressure Converter supports conversions between pascals, kilopascals, megapascals, bar, millibar, PSI, atm, and torr. It's used in engineering, meteorology, diving, and automotive applications. Enter any pressure value to instantly see all equivalents.
- Pascal, bar, PSI, atm, torr
- All equivalents at a glance
- Suitable for engineering and science
- High-precision decimal output