How many psia in 1 millimeter of mercury?
The answer is 0.019336777871316.

We assume you are converting between **pound/square inch [absolute]** and **millimeter of mercury [0 °C]**.

You can view more details on each measurement unit:

psia or
millimeter of mercury

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

1 pascal is equal to 0.00014503773800722 psia, or 0.0075006156130264 millimeter of mercury.

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

Use this page to learn how to convert between pounds/square inch and millimeters of mercury.

Type in your own numbers in the form to convert the units!

1 psia to millimeter of mercury = 51.71492 millimeter of mercury

2 psia to millimeter of mercury = 103.42985 millimeter of mercury

3 psia to millimeter of mercury = 155.14477 millimeter of mercury

4 psia to millimeter of mercury = 206.8597 millimeter of mercury

5 psia to millimeter of mercury = 258.57462 millimeter of mercury

6 psia to millimeter of mercury = 310.28954 millimeter of mercury

7 psia to millimeter of mercury = 362.00447 millimeter of mercury

8 psia to millimeter of mercury = 413.71939 millimeter of mercury

9 psia to millimeter of mercury = 465.43432 millimeter of mercury

10 psia to millimeter of mercury = 517.14924 millimeter of mercury

You can do the reverse unit conversion from millimeter of mercury to psia, or enter any two units below:

psia to sthene/square meter

psia to decibar

psia to torr

psia to megapascal

psia to newton/square meter

psia to foot of water

psia to petapascal

psia to inch water

psia to meter of air

psia to gigapascal

Pounds per square inch absolute (psia) is used to make it clear that the pressure is relative to a vacuum rather than the ambient atmospheric pressure. Since atmospheric pressure at sea level is around 14.7 psi, this will be added to any pressure reading made in air at sea level.

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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