mmHg to Atmosphere
Convert mmHg to Atmosphere instantly. Free online pressure unit converter with exact formula, conversion table and FAQ.
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Formula
atmosphere = mmhg × 0.001316
mmhg = atmosphere × 759.999892
Conversion table
| 1 mmHg | 0.001316 atm |
| 5 mmHg | 0.006579 atm |
| 10 mmHg | 0.013158 atm |
| 20 mmHg | 0.026316 atm |
| 50 mmHg | 0.065789 atm |
| 100 mmHg | 0.131579 atm |
| 500 mmHg | 0.657895 atm |
| 1000 mmHg | 1.31579 atm |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the mmhg (mmHg). Millimeters of mercury at standard gravity.
What is the destination unit in this conversion?
The destination unit is the atmosphere (atm). A standard atmosphere is exactly 101,325 pascals.
How do I convert mmhg to atmosphere?
Multiply the mmhg value by 0.001316. For example, 10 mmHg × 0.001316 = 0.013158 atm.
Is the mmhg to atmosphere conversion exact?
Yes. Both units are defined as fixed multiples of the pascal, the SI-derived unit of pressure, so the conversion factor follows directly from those exact definitions rather than a measured approximation.
Where is this conversion commonly used?
It's used whenever a value expressed in mmhg needs to be compared with, or reported in, atmosphere, such as in engineering specifications, weather readings, tire pressure, or industrial and scientific work.
Can I convert atmosphere back to mmhg?
Yes. Multiply the atmosphere value by 759.999892 to get mmhg.
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About this conversion
This page converts mmhg (mmHg) to atmosphere (atm) within the pressure converter.
Millimeters of mercury at standard gravity. A standard atmosphere is exactly 101,325 pascals.
The formula is atmosphere = mmhg × 0.001316, based on each unit's fixed relationship to the pascal, the pressure converter's base unit.
The conversion is exact, since both units are tied to the pascal by a fixed numerical ratio rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common mmhg values already converted to atmosphere.