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Calculator for conversions between pressure units.

From Unit:

- Select -
Atmosphere [Standard] (atm)
Atmosphere [Technical] (at)
Bar (bar)
Barye (Barye)
Centimeter Of Mercury (cmHg)
Centimeter Of Water [4°C, 39.2°F] (cmH₂O)
Foot Of Mercury [Conventional] (ftHg)
Foot Of Water [4°C, 39.2°F] (ftH₂O)
Inch Of Mercury [Conventional] (inHg)
Inch Of Water [4°C, 39.2°F] (inH₂O)
Kilogram-Force Per Square Millimeter (kgf/mm²)
Kip Per Square Inch (ksi)
Micrometer (Micron) Of Mercury (µmHg)
Millimeter Of Mercury (mmHg)
Millimeter Of Water [4°C, 39.2°F] (mmH₂O)
Pascal (Pa)
Pièze (pz)
Pound Per Square Foot (psf)
Pound Per Square Inch (psi)
Poundal Per Square Foot (pdl/sq ft)
Short Ton Per Square Foot (sh tn/sq ft)
Torr (torr)

Input Value:

To Unit:

- Select -
Atmosphere [Standard] (atm)
Atmosphere [Technical] (at)
Bar (bar)
Barye (Barye)
Centimeter Of Mercury (cmHg)
Centimeter Of Water [4°C, 39.2°F] (cmH₂O)
Foot Of Mercury [Conventional] (ftHg)
Foot Of Water [4°C, 39.2°F] (ftH₂O)
Inch Of Mercury [Conventional] (inHg)
Inch Of Water [4°C, 39.2°F] (inH₂O)
Kilogram-Force Per Square Millimeter (kgf/mm²)
Kip Per Square Inch (ksi)
Micrometer (Micron) Of Mercury (µmHg)
Millimeter Of Mercury (mmHg)
Millimeter Of Water [4°C, 39.2°F] (mmH₂O)
Pascal (Pa)
Pièze (pz)
Pound Per Square Foot (psf)
Pound Per Square Inch (psi)
Poundal Per Square Foot (pdl/sq ft)
Short Ton Per Square Foot (sh tn/sq ft)
Torr (torr)

Converted Value:

Pressure

In physics, pressure is a measure of the force per unit area applied to the surface of an object.
The SI unit of pressure is the *pascal* (Pa) or *Newton per square meter* (N/m²).
Pressure (*P*) on a surface is defined as the force (*F*) divided by the surface's area (*A*): *P*=*F*/*A*.
When you type on a computer keyboard, the pressure on a key is equal to the force of your finger exerted on the key divided by the area of your fingertip.

Pressure is also often expressed as a depth of a particular fluid in a manometer such as mercury or water (e.g.,*millimeter of mercury* or *centimeter of water*).
For example, blood pressure is measured in *millimeter of mercury*.

Pressure is also often expressed as a depth of a particular fluid in a manometer such as mercury or water (e.g.,

Related Conversion Tool

Do you know?

The pressure is on!

The word "pressure" is often used to describe a feeling of stress that athletes experience in competitive sport situations such as during a championship game.
However, in physics, "pressure" has a different meaning.