pressure Converter

Convert pressure units instantly with our free online pressure converter. Whether you need to convert Pascal to Bar, PSI to kPa, or any other pressure conversion, our calculator provides accurate results for engineering, automotive, and scientific applications.

Pressure conversion is essential in engineering, automotive, HVAC systems, and scientific research. Our tool supports all common pressure units from Pascal (Pa) to Atmosphere (atm), including Bar, PSI, Torr, and mercury measurements.

Common Pressure Units:

• Pascal (Pa): The SI base unit of pressure. 1 Pascal = 1 Newton per square meter. Used in scientific calculations and meteorology.
• Kilopascal (kPa): 1,000 Pa. Common in automotive (tire pressure: 200-250 kPa) and HVAC systems.
• Bar: 100,000 Pa. Widely used in engineering and weather forecasting (1 bar ≈ atmospheric pressure).
• PSI (Pounds per Square Inch): Common in the US for tire pressure, hydraulics, and industrial applications.
• Atmosphere (atm): Standard atmospheric pressure at sea level (101,325 Pa). Used in chemistry and physics.
• Torr and mmHg: Used in vacuum technology and medical applications (blood pressure measurements).

Essential Pressure Conversions:

• Pa to kPa: Divide by 1,000 (P_kPa = P_Pa ÷ 1,000)
• Bar to Pa: Multiply by 100,000 (P_Pa = P_bar × 100,000)
• PSI to kPa: Multiply by 6.895 (P_kPa = P_psi × 6.895)
• atm to Pa: Multiply by 101,325 (P_Pa = P_atm × 101,325)
• Bar to PSI: Multiply by 14.504 (P_psi = P_bar × 14.504)
• mmHg to Pa: Multiply by 133.322 (P_Pa = P_mmHg × 133.322)

Step-by-Step Conversion Examples:

Convert 2.5 Bar to PSI:

2.5 bar × 14.504 = 36.26 PSI

Convert 30 PSI to kPa:

30 PSI × 6.895 = 206.85 kPa

Convert 1 atm to mmHg:

1 atm × 760 = 760 mmHg

Common Uses for Pressure Conversion:

• Automotive: Converting tire pressure between PSI and kPa for different vehicle specifications (typically 30-35 PSI or 207-241 kPa).
• HVAC Systems: Converting between Bar and PSI for refrigeration systems, boilers, and air conditioning units.
• Industrial Engineering: Converting pressure specifications for hydraulic systems, pneumatic tools, and manufacturing equipment.
• Weather & Meteorology: Converting atmospheric pressure between mbar, inHg, and Pa for weather forecasting.
• Medical Applications: Converting blood pressure readings and vacuum measurements in medical equipment.
• Scuba Diving: Converting tank pressure between Bar and PSI for dive planning and equipment specifications.
• Laboratory Work: Converting vacuum levels and gas pressures for scientific experiments and research.