# 1 pascal: how many atmospheres, bar, hectopascals, torr?

 0 566

The pascal, abbreviated to Pa, is a derived metric unit of pressure.

Derived means that pascals can be expressed with help of basic SI units: 1Pa = kg/m x s2 (where ‘m’ stands for the metre and ‘s’ for the second).

Or, the pascal can be also stated as: 1Pa = 1 N/m2 , where N is the newton. In everyday life, we often hear of pressure expressed in hectopascals in meteorological reports but pascals can also be converted to other units of pressure like atmospheres, torr, bar etc.:

 1 Pa = 9.86923267x 10-6 0.00750061683 0.00001 0.01 0.001 atmosphere torr bar hectopascals kilopascals

- Torr is a unit which was initially meant to be equal to the ‘millimetre of mercury’ [mmHg]. However, the two units underwent a redefinition which made them different by about 0.000 015%.
- Atmosphere (also known as ‘standard atmosphere’) is a unit based on the average atmospheric pressure at mean sea level.
- Bar is a unit based on atmospheric pressure on Earth at sea level.

Did you know?

The pascal has been named in honour of a 17th century French mathematician, physicist and philosopher, Blaise Pascal. Pascal is renown for his contribution to the study of hydrodynamics.

### 1 knot: how many nautical miles ...

Imagine finding yourself at the sea, off shore, far...

 0 548

### 1 perch: how many (square) rods,...

The perch, also known as the rod or the pole is one...

 0 567

### 1 centimetre: how many millimetr...

A centimetre is a unit of length derived from a metre:...

 0 601

### 1 rood: how many perches, square...

Rood is an English unit of area (and an obsolete measure...

 0 520

### How many zeros, billions and mil...

Confusion about billions and trillions is understandable,...

 0 625

### How many grams are there in a ca...

Did you know that the world’s largest uncut diamond...

 0 634

## Top Discussions

~ hennas 2023-01-19 10:34:23
 i though highland in scotland may have made the list tbh
~ pcp 2021-07-23 05:33:13
 Technically Scotland doesn't count because they abolished the use of counties, hence why Inverness shire is not on the list.
~ dcd 2021-07-04 17:15:54
 What happened to Invernessshire? at 10,907 km2 it is the biggest. Argyllshire would be up there too. 8,055 km2. This seems...