The torr is a unit of pressure named after the Italian physicist Evangelista Torricelli, who invented the barometer in the 17th century. It is defined as 1/760th of an atmosphere, approximating the pressure exerted by a one-millimeter column of mercury at 0 degrees Celsius. What makes the torr particularly interesting is its practical use in fields like vacuum technology and weather forecasting, where precise measurements of atmospheric pressure are crucial.
The legacy of Torricelli’s work is integral to meteorology and physics, as it opened paths for understanding atmospheric pressure. Beyond scientific circles, the torr is a reminder of human ingenuity in unraveling atmospheric mysteries and continues to play a vital role in today’s scientific advancements.
The “bar” is a metric unit of pressure, commonly used in meteorology to describe atmospheric pressure — one bar is approximately equal to the atmospheric pressure on Earth at sea level. Interestingly, the term “bar” originates from the Greek word “baros,” meaning weight. This unit is not only practical for forecasting weather but also critical in various scientific fields, such as oceanography and engineering, where accurate pressure measurements are crucial.
A fascinating aspect of the bar is its application in scuba diving. Divers often use bar to read their submersible pressure gauges to monitor air consumption. Moreover, understanding bar pressure changes is essential in deep-sea diving to avoid decompression sickness, a condition caused by rapid changes in pressure. Thus, the bar is a pivotal unit in both scientific and everyday contexts.
Torr | Bar |
---|---|
0
torr
|
0
bar
|
10
torr
|
0.0133322
bar
|
20
torr
|
0.0266645
bar
|
30
torr
|
0.0399967
bar
|
40
torr
|
0.0533289
bar
|
50
torr
|
0.0666612
bar
|
60
torr
|
0.0799934
bar
|
70
torr
|
0.0933257
bar
|
80
torr
|
0.106658
bar
|
90
torr
|
0.11999
bar
|
100
torr
|
0.133322
bar
|
110
torr
|
0.146655
bar
|
120
torr
|
0.159987
bar
|
130
torr
|
0.173319
bar
|
140
torr
|
0.186651
bar
|
150
torr
|
0.199984
bar
|
160
torr
|
0.213316
bar
|
170
torr
|
0.226648
bar
|
180
torr
|
0.23998
bar
|
190
torr
|
0.253313
bar
|
200
torr
|
0.266645
bar
|
210
torr
|
0.279977
bar
|
220
torr
|
0.293309
bar
|
230
torr
|
0.306641
bar
|
240
torr
|
0.319974
bar
|
250
torr
|
0.333306
bar
|
260
torr
|
0.346638
bar
|
270
torr
|
0.35997
bar
|
280
torr
|
0.373303
bar
|
290
torr
|
0.386635
bar
|
300
torr
|
0.399967
bar
|
310
torr
|
0.413299
bar
|
320
torr
|
0.426632
bar
|
330
torr
|
0.439964
bar
|
340
torr
|
0.453296
bar
|
350
torr
|
0.466628
bar
|
360
torr
|
0.479961
bar
|
370
torr
|
0.493293
bar
|
380
torr
|
0.506625
bar
|
390
torr
|
0.519957
bar
|
400
torr
|
0.533289
bar
|
410
torr
|
0.546622
bar
|
420
torr
|
0.559954
bar
|
430
torr
|
0.573286
bar
|
440
torr
|
0.586618
bar
|
450
torr
|
0.599951
bar
|
460
torr
|
0.613283
bar
|
470
torr
|
0.626615
bar
|
480
torr
|
0.639947
bar
|
490
torr
|
0.65328
bar
|
500
torr
|
0.666612
bar
|
510
torr
|
0.679944
bar
|
520
torr
|
0.693276
bar
|
530
torr
|
0.706609
bar
|
540
torr
|
0.719941
bar
|
550
torr
|
0.733273
bar
|
560
torr
|
0.746605
bar
|
570
torr
|
0.759938
bar
|
580
torr
|
0.77327
bar
|
590
torr
|
0.786602
bar
|
600
torr
|
0.799934
bar
|
610
torr
|
0.813266
bar
|
620
torr
|
0.826599
bar
|
630
torr
|
0.839931
bar
|
640
torr
|
0.853263
bar
|
650
torr
|
0.866595
bar
|
660
torr
|
0.879928
bar
|
670
torr
|
0.89326
bar
|
680
torr
|
0.906592
bar
|
690
torr
|
0.919924
bar
|
700
torr
|
0.933257
bar
|
710
torr
|
0.946589
bar
|
720
torr
|
0.959921
bar
|
730
torr
|
0.973253
bar
|
740
torr
|
0.986586
bar
|
750
torr
|
0.999918
bar
|
760
torr
|
1.01325
bar
|
770
torr
|
1.02658
bar
|
780
torr
|
1.03991
bar
|
790
torr
|
1.05325
bar
|
800
torr
|
1.06658
bar
|
810
torr
|
1.07991
bar
|
820
torr
|
1.09324
bar
|
830
torr
|
1.10658
bar
|
840
torr
|
1.11991
bar
|
850
torr
|
1.13324
bar
|
860
torr
|
1.14657
bar
|
870
torr
|
1.1599
bar
|
880
torr
|
1.17324
bar
|
890
torr
|
1.18657
bar
|
900
torr
|
1.2
bar
|
910
torr
|
1.21323
bar
|
920
torr
|
1.22657
bar
|
930
torr
|
1.2399
bar
|
940
torr
|
1.25323
bar
|
950
torr
|
1.26656
bar
|
960
torr
|
1.27989
bar
|
970
torr
|
1.29323
bar
|
980
torr
|
1.30656
bar
|
990
torr
|
1.31989
bar
|
1000
torr
|
1.33322
bar
|
If you like the website, share it on social media.