Pressure Unit Converter

About Pressure Conversion

Pressure is a fundamental property in chemical engineering used in process design, safety analysis, and equipment operation. Different industries and regions use different units such as Pascal (Pa), bar, atm, psi, and mmHg.

This converter quickly converts pressure values between commonly used units. Conversion is done internally through the SI base unit, Pascal (Pa):

• 1 kPa = 1,000 Pa
• 1 bar = 100,000 Pa
• 1 atm = 101,325 Pa
• 1 mmHg = 133.322 Pa
• 1 psi = 6,894.76 Pa

Thus the conversion formula is:

Value_in_Target = (Value_in_From × Factor_From) / Factor_Target

Where Factor_From and Factor_Target are the Pascal equivalents of each unit. For example:
2 bar → Pa = 2 × 100,000 = 200,000 Pa
Pa → psi = 200,000 / 6,894.76 = 29.0 psi

FAQs

Q: What is the SI unit of pressure?
A: Pascal (Pa).

Q: How many Pa are in 1 bar?
A: 1 bar = 100,000 Pa.

Q: Is 1 atm equal to 101.325 kPa?
A: Yes, exactly.