Pressure Converter

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Converts pressure values between various units, including Pascals, atmospheres, bars, pounds per square inch (PSI), and millimeters of mercury (mmHg).

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How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Pressure Value and From Unit in the units shown.

Step 2

Read Pascal (Pa), Millimeter of Mercury (mmHg), Pound per Square Inch (psi), Bar, and Atmosphere (atm) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

1 Pascal

Pressure Value: 1 Pa; From Unit: Pascal (Pa)

Pascal (Pa): 1 Pa; Millimeter of Mercury (mmHg): 0.007500637554 mmHg; Pound per Square Inch (psi): 0.0001450376808 psi; Bar: 0.00001 bar; Atmosphere (atm): 0.000009869232667 atm

1 Atmosphere

Pressure Value: 1 Pa; From Unit: Atmosphere (atm)

Pascal (Pa): 101,325 Pa; Millimeter of Mercury (mmHg): 760.0021002 mmHg; Pound per Square Inch (psi): 14.69594301 psi; Bar: 1.01325 bar; Atmosphere (atm): 1 atm

1 Bar

Pressure Value: 1 Pa; From Unit: Bar

Pascal (Pa): 100,000 Pa; Millimeter of Mercury (mmHg): 750.0637554 mmHg; Pound per Square Inch (psi): 14.50376808 psi; Bar: 1 bar; Atmosphere (atm): 0.9869232667 atm

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