About Pressure Unit Conversion

Pressure is a fundamental physical quantity that measures the force applied perpendicular to the surface of an object per unit area. It is commonly expressed in various units depending on the field of application and regional preferences. Our Pressure Unit Converter allows for easy conversion between the following units:

• Pascal (Pa): The SI unit of pressure, defined as one newton per square meter.
• Bar: A metric unit of pressure, equal to 100,000 pascals.
• Pounds per Square Inch (PSI): A unit commonly used in the United States and the United Kingdom.
• Atmosphere (atm): A unit of pressure approximately equal to the average atmospheric pressure at sea level on Earth.
• Millimeter of Mercury (mmHg): Often used in medical and meteorological contexts.
• Inch of Mercury (inHg): Commonly used in weather reports in the United States.

Conversion Formulas

The converter uses Pascal as the base unit for all conversions. Here are the conversion factors to Pascal:

• 1 bar = 100,000 Pa
• 1 psi ≈ 6,894.75729 Pa
• 1 atm = 101,325 Pa
• 1 mmHg ≈ 133.322 Pa
• 1 inHg ≈ 3,386.389 Pa

To convert between any two units, the calculator first converts the input value to Pascal, then from Pascal to the desired output unit.