How many millimeter mercury in 1 petabar?
The answer is 7.5006157584566E+17.

We assume you are converting between and **petabar**.

You can view more details on each measurement unit:

millimeter mercury or
petabar

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

1 pascal is equal to 0.0075006157584566 millimeter mercury, or 1.0E-20 petabar.

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

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

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

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

millimeter mercury to foot mercury

millimeter mercury to bar

millimeter mercury to megapascal

millimeter mercury to yottabar

millimeter mercury to millibar

millimeter mercury to zettapascal

millimeter mercury to zeptobar

millimeter mercury to kilogram-force/square millimeter

millimeter mercury to foot water

millimeter mercury to water column

The millimeter of mercury by definition is 133.322387415 Pa (13.5951 g/cm3 × 9.80665 m/s2 × 1 mm), which is approximated with known accuracies of density of mercury and standard gravity.

The torr is defined as 1/760 of one standard atmosphere, while the atmosphere is defined as 101325 pascals. Therefore, 1 Torr is equal to

101325/760 Pa. The decimal form of this fraction is approximately 133.322368421.

The relationship between the torr and the millimeter of mercury is:

1 Torr = 0.999999857533699 mmHg

1 mmHg = 1.000000142466321 Torr

The difference between one millimeter of mercury and one torr, as well as between one atmosphere (101.325 kPa) and 760 mmHg (101.3250144354 kPa), is less than one part in seven million (or less than 0.000015%). This small difference is negligible for most applications outside metrology.

The SI prefix "peta" represents a factor of
10^{15}, or in exponential notation, 1E15.

So 1 petabar = 10^{15} bars.

The definition of a bar is as follows:

The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). The word bar is of Greek origin, báros meaning weight. Its official symbol is "bar"; the earlier "b" is now deprecated, but still often seen especially as "mb" rather than the proper "mbar" for millibars.

**ConvertUnits.com** provides an online
conversion calculator for all types of measurement units.
You can find metric conversion tables for SI units, as well
as English units, currency, and other data. Type in unit
symbols, abbreviations, or full names for units of length,
area, mass, pressure, and other types. Examples include mm,
inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm,
metres squared, grams, moles, feet per second, and many more!