Pressure converter

Convert Torr to Bars

Convert Torr to Bars instantly. 1 Torr (Torr) equals 0.001333 Bars (bar).

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Torr to Bars conversion table

Torr (Torr)Bars (bar)
1 Torr 0.001333 bar
2 Torr 0.002666 bar
3 Torr 0.004 bar
5 Torr 0.006666 bar
10 Torr 0.01333 bar
20 Torr 0.02666 bar
50 Torr 0.06666 bar
100 Torr 0.1333 bar
500 Torr 0.6666 bar
1,000 Torr 1.3332 bar
Conversion 1 Torr = 0.001333 Bars · multiply Torr by 0.001333

About converting Torr to Bars

Torr (Torr) and Bars (bar) are both units of pressure, so converting between them is a single multiplication: multiply your Torr figure by 0.001333. Ten Torr comes to 0.01333 Bars, and a hundred works out at 0.1333 Bars.

Rule of thumb: going from Torr to Bars divides, so the figure always shrinks — it takes about 750.0617 Torr to make a single Bar. If your answer came out bigger, you have the conversion the wrong way round.

What is a Torr?

The torr is named after Evangelista Torricelli, who invented the mercury barometer and in the process produced the first sustained vacuum anyone had made. The unit fits that legacy exactly: it is very nearly the pressure of one millimetre of mercury, and it is still the working unit of vacuum technology, where gauges read in torr and in decimal fractions of it. Its most familiar relative is not in a laboratory at all — blood pressure is quoted in millimetres of mercury, essentially the same size, so a reading of 120 over 80 is a pressure measurement in all but name.

What is a Bar?

The bar is not an SI unit, but it is accepted for use alongside them, and it earns that place by sheer convenience: it was chosen to sit close to average atmospheric pressure, so "one bar" reads as roughly what the air is doing right now. It dominates European industry — compressed air, hydraulics, scuba cylinders, espresso machines and tyre pressures are all quoted in bar. Its subdivision the millibar had a long career in weather forecasting before being quietly replaced by the hectopascal, which is exactly the same size, so nothing on the old charts had to change.

To put both in perspective: a rough vacuum pump pulls down to about 0.1 torr, while a scuba tank is filled to about 200 bar.

The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Bars to Torr converter, or browse all Pressure converters.

Frequently asked questions

How many Bars are in one Torr?

There are 0.001333 Bars in one Torr.

How do I convert Torr to Bars?

Multiply the number of Torr by 0.001333. For example, 10 Torr = 0.01333 Bars.

What is 100 Torr in Bars?

100 Torr is equal to 0.1333 Bars.

How do I convert Bars to Torr?

Multiply the Bars value by 750.0617 (or divide by 0.001333).

Is this Torr to Bars conversion exact?

The definition is exact — Torr and Bars are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.

What is a Torr?

The torr is named after Evangelista Torricelli, who invented the mercury barometer and in the process produced the first sustained vacuum anyone had made. The unit fits that legacy exactly: it is very nearly the pressure of one millimetre of mercury, and it is still the working unit of vacuum technology, where gauges read in torr and in decimal fractions of it. Its most familiar relative is not in a laboratory at all — blood pressure is quoted in millimetres of mercury, essentially the same size, so a reading of 120 over 80 is a pressure measurement in all but name.

What is a Bar?

The bar is not an SI unit, but it is accepted for use alongside them, and it earns that place by sheer convenience: it was chosen to sit close to average atmospheric pressure, so "one bar" reads as roughly what the air is doing right now. It dominates European industry — compressed air, hydraulics, scuba cylinders, espresso machines and tyre pressures are all quoted in bar. Its subdivision the millibar had a long career in weather forecasting before being quietly replaced by the hectopascal, which is exactly the same size, so nothing on the old charts had to change.