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atmosphere [standard] atmosphere [technical] |
to |
mmHg |

How many atm in 1 mmHg?
The answer is 0.00131578955679.

We assume you are converting between **atmosphere [standard]** and **millimeter of mercury [0 °C]**.

You can view more details on each measurement unit:

atm or
mmHg

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 9.86923169314E-6 atm, or 0.00750061561303 mmHg.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between atmospheres and millimeters of mercury.

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You can do the reverse unit conversion from mmHg to atm, or enter any two units below:

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The torr (symbol: Torr) or millimetre of mercury (mmHg) is a non-SI unit of pressure. It is the atmospheric pressure that supports a column of mercury 1 millimetre high. The unit is named after Evangelista Torricelli, Italian physicist and mathematician, for his discovery of the principle of the barometer in 1643.

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