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Unit converter

Pressure Converter

Convert between bar, PSI, atmospheres, kPa, mmHg, and more.

mmHg to Atmospheres

100 mmHg = 0.1315785838 Atmospheres
0.1315785838

About these units

mmHg

The millimeter of mercury equals the pressure of a 1 mm column of mercury, about 133.3 pascals. It's standard for blood pressure readings.

Atmospheres

The standard atmosphere is defined as 101,325 pascals, approximately average sea-level air pressure. It's used as a convenient reference unit.

Conversion formula

To convert mmHg to Atmosphere, multiply the value by 0.001315785838 (1.315785838 × 10⁻³).

Quick reference

mmHgAtmospheres
10.001315785838 (1.315785838 × 10⁻³)
20.002631571675 (2.631571675 × 10⁻³)
50.006578929188 (6.578929188 × 10⁻³)
100.01315785838
1000.1315785838

Frequently asked questions

How many Atmospheres are in one mmHg?
1 mmHg = 0.001315785838 (1.315785838 × 10⁻³) Atmospheres.
How many mmHg are in one Atmosphere?
1 Atmosphere = 760.0021002 mmHg.

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