What is Pressure Converter?
A pressure converter is a tool that instantly converts between different units of pressure including pascals, kilopascals, megapascals, bar, PSI, atmospheres, mmHg, and inHg. Whether you are working with tire pressure, blood pressure, atmospheric science, or engineering, this converter provides accurate pressure conversions across all standard units.
Steps:
- Enter the pressure value you want to convert in the input field.
- Select the source unit (the unit you are converting from).
- Select the target unit (the unit you want to convert to).
- The converted result appears instantly along with the formula used.
- Export the result as PDF, Excel, or CSV if needed.
Formula
Pressure conversion factors (base unit: Pascal):
1 Pascal (Pa) = 1 Pa
1 Kilopascal (kPa) = 1,000 Pa
1 Megapascal (MPa) = 1,000,000 Pa
1 bar = 100,000 Pa
1 PSI = 6,894.757 Pa
1 atmosphere (atm) = 101,325 Pa
1 mmHg = 133.322 Pa
1 inHg = 3,386.39 Pa
Use Cases
- Tire pressure: converting between PSI and bar for vehicle maintenance.
- Weather forecasting: converting between inHg, mmHg, and hPa for barometric readings.
- Medical: reading blood pressure measurements in mmHg.
- Engineering: converting between Pascals, bar, and PSI for hydraulic and pneumatic systems.
Key Benefits
- Convert instantly between pascals, bar, PSI, atmospheres, and more.
- Get precise pressure calculations for engineering, medical, and everyday use.
- Switch effortlessly between metric and imperial pressure units.
Pro Tips
- Use bar as the intermediate unit for multi-step pressure conversions.
- Remember that 1 atm ≈ 101.3 kPa ≈ 14.7 PSI ≈ 760 mmHg.
- For tire pressure, most cars use PSI in the US and bar in Europe.
- Always specify whether your measurement is gauge or absolute pressure.
Common Mistakes to Avoid
- Confusing kPa with PSI — 1 kPa is only about 0.145 PSI, not 1 PSI.
- Forgetting that atmospheric pressure varies with altitude and weather conditions.
- Mixing up gauge pressure (relative to atmosphere) with absolute pressure.
Key Terms Explained
- Pascal: The SI unit of pressure, equal to one newton per square meter
- PSI: Pounds per square inch, an imperial unit commonly used for tire and tire pressure
- Bar: A metric unit of pressure approximately equal to atmospheric pressure at sea level
- Atmosphere: A unit equal to standard sea-level pressure (101,325 Pa)
Example
Converting 1 bar to PSI: 1 × 14.504 = 14.504 PSI. Converting 760 mmHg to atmospheres: 760 ÷ 760 = 1 atm. Converting 100 kPa to bar: 100 ÷ 100 = 1 bar.