“Torr.” Wikipedia, Wikimedia Foundation, 25 Apr. “Torr.” Torr – an Overview | ScienceDirect Topics, Available here.Ģ. The key difference between torr and mmHg is that the value of one torr can be obtained by dividing 101325 from 760 whereas the value of one mmHg is given exactly as 133.3224. Although the values of pressure measured from these two units are considered similar, they actually have a slight difference. Moreover, torr is used to express the pressure of a thermodynamic system while mmHg is important in expressing the blood pressure, cerebrospinal fluid pressure, central venous pressure, intramuscular pressure, etc.īelow is a side by side comparison of both units to discern the difference between torr and mmHg.īoth torr and mmHg are units of measurement of pressure. While 1 torr equals 0.999 mmHg, I mmHg equals 1.0000004 torr. The key difference between torr and mmHg is that the value of one torr can be obtained by dividing 101325 from 760, whereas the value of one mmHg is given exactly as 133.3224. What is the Difference Between Torr and mmHg?Īlthough the values of pressure measured from these two units are considered similar, they actually have a slight difference – about 0.000015%. This unit was named after the scientist Evangelista Torricelli, who discovered the theory behind the barometer. Therefore, this term is equal exactly to the value obtained by dividing one standard atmospheric pressure value (101325 Pa) from 760.
The value of one torr can be obtained from multiplying 1/760 from a standard atmospheric pressure unit. It is derived based on an absolute scale (begins with zero and goes forward only in one direction). Torr is a unit of measurement of pressure where one torr equals the value obtained by dividing 101325 from 760. Side by Side Comparison – Torr vs mmHg in Tabular Form In the past, it was considered that both these units have the same value for a particular amount of pressure, but now scientists have found that they have a slight difference in their values, that is about a 0.000015% difference. The key difference between torr and mmHg is that the value of one torr can be obtained by dividing 101325 from 760, whereas the value of one mmHg is given exactly as 133.3224.īoth torr and mmHg are units of measurement of pressure.
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