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Result
1 Atmosphere = 760.00210018 mmHg
Pressure unit conversions for engineering, weather, and medical applications. Pascal, Bar, PSI, ATM and more.
| Atmosphere (atm) | mmHg (Torr) |
|---|---|
| 1 atm | 760.00210018 Torr |
| 2 atm | 1520.00420036 Torr |
| 5 atm | 3800.01050089 Torr |
| 10 atm | 7600.02100179 Torr |
| 25 atm | 19000.05250446 Torr |
| 50 atm | 38000.10500893 Torr |
| 100 atm | 76000.21001785 Torr |
| 250 atm | 190000.52504463 Torr |
| 500 atm | 380001.05008926 Torr |
| 1000 atm | 760002.10017852 Torr |
Formula
mmHg = Atmosphere × 760.00210018
Worked Example
Example: 5 Atmosphere = 5 × 760.00210018 = 3800.01050089 mmHg
To convert Atmosphere to mmHg, multiply the Atmosphere value by 760.00210018. This factor is derived from the ratio between the two units.
The standard atmosphere is a unit of pressure defined as 101,325 pascals. It represents the average atmospheric pressure at sea level and is used as a reference in chemistry, physics, and diving.
History
The concept of atmospheric pressure was first demonstrated by Evangelista Torricelli in 1643 using a mercury barometer. The standard atmosphere was defined at the value of 101,325 Pa, corresponding to the pressure supporting a 760 mm column of mercury.
Millimeters of mercury (also called Torr) is a unit of pressure based on the height of a mercury column. It is the standard unit for measuring blood pressure (e.g., 120/80 mmHg) and is also used in vacuum technology.
History
The mmHg unit originates from Torricelli's barometer invention in 1643. Standard atmospheric pressure supports a mercury column of exactly 760 mm. The unit is named 'Torr' in honor of Torricelli. It remains the universal standard for blood pressure measurement.
Calculated using the latest NIST standards for physical constants and unit ratios.
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