**Convert mmHg to atm (Pressure Conversion – Unit Converter)**

Do you need to convert mmHg to atm? We have the solution to your pressure conversion question. 1 mmHg equals 0.00131579 atm, which is the same as saying 1 millimeter of mercury equals 0.00131579 standard atmospheres.

What if you don’t have precisely one mmHg? We know that 1 millimeter of mercury equals 0.00131579 standard atmospheres, but how do you convert mmHg to atm? That’s simple! Use our mmHg to atm unit converter to turn your millimeters of mercury into standard atmospheres, one mmHg at a time.

**mmHg to atm converter (Conversion calculator)**

Use our free mmHg to atm converter to quickly convert from mmHg to atm. Just type in how many millimeters of mercury you have into the mmHg box, and we will convert millimeters of mercury into standard atmospheres for you!

Looking at the mmHg to atm converter, you will see that we entered a value of 1 mmHg, which gives us an answer of 0.00131579 atm. That’s the answer to ‘convert 1 mmHg to atm’. 1 milliliter of mercury equals 0.00131579 standard atmospheres.

Now it’s your turn! Just type in how many mmHg you have, and our mmHg to atm online calculator will tell you how much it is in standard atmospheres. We make mmHg to atm calculations easy with our online calculator, no matter how many mmHg you have. Whether you have 1 mmHg or 760 mmHg, we’ll find the answer to all your pressure conversion questions.

**How to convert from mmHg to atm (Pressure conversions)**

To convert from mmHg to atm (millimeters of mercury to atmospheres), divide the mmHg value by 760. Alternatively, you can multiply mmHg by 0.0013157894736842 to find the atm value. Both approaches will give you the correct solution.

**mmHg to atm conversion formula**

To convert mmHg (millimeters of mercury) to atm (atmospheres), use the following formula:

atm = mmHg x 0.0013157894736842

For example, if you have 760 mmHg, then the equivalent in atm would be:

atm = 760 mmHg x 0.0013157894736842/mmHg = 1 atm

**Quick conversion chart: mmHg to atm [0 °C] table**

One popular method to convert mmHg to atm without needing to calculate the answer yourself is to use our conversion chart. Conversion charts, also called conversion tables, list millimeters of mercury (mmHg) in one column with the corresponding number of standard atmospheres (atm) in the second column.

For example, to convert 1 mmHg to atm using our conversion chart, locate the entry for 1 mmHg in the first column and note that the matching value for atm in the second column is 0.00131579. There is 0.00131579 atm in 1 mmHg.

mmHg | atm |
---|---|

760 | 1 |

750 | 0.986842 |

745 | 0.980263 |

582 | 0.76579 |

265 | 0.348684 |

75 | 0.0986842 |

18.7 | 0.02460527 |

1 | 0.00131579 |

**Conversion Example: Convert 743 mmHg to atm (Answered)**

To convert 743 mmHg to atm, divide the pressure in mmHg by 760. This approach gives you the answer in atm, which is 0.977632 atm.

**Definition: What is mmHg? (Millimeter mercury)**

Millimeters of mercury (symbol = mmHg) is a manometric unit of pressure equal to the pressure exerted by a column of mercury that is one millimeter high under standard gravity. You will most frequently see mmHg used in blood pressure readings and weather reports from meteorologists.

The mmHg unit is commonly used in medicine (blood pressure), meteorology (weather reports), aviation (cabin pressure), and other scientific fields.

1 mmHg is equal to 1/760 standard atmospheres (atm) or, in SI units, 133.322 Pa (Pascals).

**Definition: What is standard atmosphere (atm)?**

Standard atmosphere (symbol = atm) is a unit of pressure defined as 101,325 Pa, 760 mmHg, 101.325 kPa, 1.01325 bar, 760 torr, 4.6959 psi, or 1 ata (atmosphere absolute). Standard atmospheric pressure is equivalent to the average atmospheric pressure on Earth at sea level.

It is called a ‘standard atmosphere’ because it is sometimes used as a standard or reference pressure.

**Are atm and mmHg the same? (Pressure measurement units) **

No, atm (standard atmosphere) and mmHg (millimeter of mercury) are not the same. While both atm and mmHg are pressure units, they have different values with 1 atm equalling 760 mmHg.

**How many mmHg in 1 atm? **

An atmosphere (abbreviated atm) is a unit of pressure. It is equal to the pressure exerted by the Earth’s atmosphere at sea level. One atmosphere is equal to 760 mmHg.

**How do you convert blood pressure to atm? **

To convert blood pressure from mmHg to atm, multiply the number of mmHg by 0.0013157894736842, which is the mmHg to atm conversion factor.

**What is atmospheric pressure at sea level?**

Atmospheric pressure is the measure of the force exerted by the weight of the atmosphere on a given point. At sea level, the atmospheric pressure is 760 millimeters of mercury (mmHg), 1013.25 millibars (mb), or 101325 pascals (Pa). This means that the sea-level atmosphere exerts a force of 760 mmHg on every square meter of surface area.

As elevation increases, the amount of atmospheric mass decreases, which means that atmospheric pressure decreases.

**How to convert mmHg to psi (pounds per square inch calculation)**

To convert mmHg to psi (pounds per square inch), multiply the mmHg value by 0.0193368. The answer will be in terms of psi.

**How many kPa in 1 mmHg?**

There are 0.133322 kPa (kilopascals) in 1 mmHg.

**How many mmHg are in 1 torr?**

A torr is a unit of pressure that is equivalent to 1 mmHg. Thus, 1 torr is equal to 1 mmHg.

**Conclusion**

In conclusion, we can convert mmHg to atm by multiplying the mmHg value by 0.00131579. For example, 1 mmHg is equal to 0.00131579 atm.

To convert between millimeters of mercury to standard atmospheres, use our mmHg converter or read the ‘How to convert from mmHg to atm’ section in this article.