Pressure Conversion Calculator — Convert Pressure Units

Pressure Conversion Calculator

Convert between pressure units: PSI, bar, pascal, atmosphere, torr, mmHg, kPa, MPa, and more. Accurate pressure unit conversions for engineering, science, and industrial applications.

Step 1: Enter Pressure Value

100

Understanding Pressure Units

Pressure is force per unit area. Common units: PSI (pounds per square inch), bar (metric unit equal to 100 kPa), Pascal (SI unit, 1 N/m²), atm (Earth’s atmospheric pressure at sea level).

Step 2: Calculation Options

Common Pressure Conversions

1 atm = 101.325 kPa = 14.696 psi = 760 mmHg
1 bar = 100 kPa = 14.5038 psi
1 psi = 6.89476 kPa = 0.0689476 bar

Pressure Conversion Results

Conversion Summary
All Unit Conversions
Conversion Formulas

Pressure Conversion Result

6.89 bar
100 PSI converted to bar
Pounds per Square Inch
100.00 psi
Bar
6.89 bar
Kilopascal
689.48 kPa
Megapascal
0.69 MPa
Atmosphere
6.80 atm
Torr
5171.49 torr

All Pressure Unit Conversions

Pressure Unit Abbreviation Value Common Use

Pressure Conversion Formulas

PSI to Other Units

PSI to bar: bar = PSI × 0.0689476
PSI to kPa: kPa = PSI × 6.89476
PSI to atm: atm = PSI × 0.068046
PSI to mmHg: mmHg = PSI × 51.7149

Bar to Other Units

Bar to PSI: PSI = bar × 14.5038
Bar to kPa: kPa = bar × 100
Bar to atm: atm = bar × 0.986923
Bar to MPa: MPa = bar × 0.1

Atmosphere to Other Units

Atm to PSI: PSI = atm × 14.696
Atm to bar: bar = atm × 1.01325
Atm to kPa: kPa = atm × 101.325
Atm to mmHg: mmHg = atm × 760

Pascal (SI Unit)

1 Pascal = 1 Newton per square meter (N/m²)
1 kPa = 1,000 Pa
1 MPa = 1,000,000 Pa
1 GPa = 1,000,000,000 Pa

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