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Convert Pressure

Here you can convert units like megapascal, bar, kilogram per square centimeter, kilopascal, etc. within the pressure category.

All units in this category

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Unit Value Actions
megapascal MPa
bar bar Metric unit, 100,000 pascals. Read more
kilogram per square centimeter kg/cm²
kilopascal kPa
hectopascal hPa Equivalent to millibar. Used in meteorology. Read more
millibar mbar
kilogram per square meter kg/m²
pascal Pa The SI derived unit of pressure. Read more
Unit Value Actions
kilopound per square inch ksi
pound per square inch psi Imperial/US unit. Common for tire pressure. Read more
pound per square foot psf
Unit Value Actions
meter of mercury mHg
inch of mercury inHg
centimeter of mercury cmHg
millimeter of mercury mmHg
Unit Value Actions
meter of water mH₂O
inch of water inH₂O
centimeter of water cmH₂O
Unit Value Actions
standard atmosphere atm Standard pressure at sea level. Read more
technical atmosphere at

Quick conversion quiz

Score: 0

5.4 hectopascal equals 0.486 kilopascal.

180 millibar equals 162 hectopascal.

24.4 kilogram per square meter equals 0.275 kilopascal.

188 millibar equals 2.07e+4 pascal.

Definitions

bar (bar)

Metric unit, 100,000 pascals.

The bar is a metric unit of pressure, but not part of the International System of Units (SI). It is defined as exactly 100,000 Pa (100 kPa). It is slightly less than the current average atmospheric pressure on Earth at sea level.

hectopascal (hPa)

Equivalent to millibar. Used in meteorology.

The hectopascal (hPa) is equal to 100 pascals or 1 millibar. It is the international standard unit for measuring atmospheric pressure in meteorology.

pascal (Pa)

The SI derived unit of pressure.

The pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter.

pound per square inch (psi)

Imperial/US unit. Common for tire pressure.

Pounds per square inch (PSI) is a unit of pressure resulting from a force of one pound-force applied to an area of one square inch. It is widely used in the US and UK, particularly for tire pressure.

standard atmosphere (atm)

Standard pressure at sea level.

The standard atmosphere (atm) is a unit of pressure defined as exactly 101,325 Pa. It approximates the average atmospheric pressure on Earth at sea level.