millimetre of mercury to atmosphere
Live millimetre of mercury (mmHg) to atmosphere (atm) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from millimetre of mercury to atmosphere. Use the converter above for arbitrary values.
| millimetre of mercury (mmHg) | → | atmosphere (atm) |
|---|---|---|
| 0.001 mmHg | → | 1.3158e-6 atm |
| 0.01 mmHg | → | 1.3158e-5 atm |
| 0.1 mmHg | → | 0.000132 atm |
| 0.5 mmHg | → | 0.000658 atm |
| 1 mmHg | → | 0.001316 atm |
| 2 mmHg | → | 0.002632 atm |
| 5 mmHg | → | 0.006579 atm |
| 10 mmHg | → | 0.013158 atm |
| 100 mmHg | → | 0.131579 atm |
| 1,000 mmHg | → | 1.31579 atm |
About the millimetre of mercury
Traditional blood pressure unit.
About the atmosphere
Standard atmospheric pressure at sea level.
How millimetre of mercury to atmosphere conversion works
Both units belong to Pressure. Unitbox first expresses the input in the category reference unit (Pa), then expresses that same quantity in atmosphere.
The right unit depends on the convention used by your industry, country, instrument, or source document.
Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.
Frequently asked questions
Frequently Asked Questions
How do I convert millimetre of mercury to atmosphere?
Multiply the millimetre of mercury value by 0.001316 to get it in atmosphere. For example, 10 mmHg = 0.0132 atm.
What is 1 mmHg in atm?
1 mmHg = 0.001316 atm.
What is 100 mmHg in atm?
100 mmHg = 0.1316 atm.
What is the formula?
Linear: multiply by 0.001316 (the unit factor ratio).
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