Millimetres of mercury to Bar Converter

Convert millimetres of mercury (mmHg) to bar (bar) instantly. Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.

Result

Bar
0.001333 bar

How to use the millimetres of mercury to bar converter

  1. Enter the millimetres of mercury (mmHg).
  2. The results update as you type, or press Calculate.
  3. Read the bar first, then the supporting figures below it.

Formula

Bar = millimetres of mercury × 0.00133322

Worked example

For example, with these inputs:

the calculator returns:

Millimetres of mercury to Bar table

Millimetres of mercuryBar
1 mmHg0.001333 bar
2 mmHg0.002666 bar
5 mmHg0.006666 bar
10 mmHg0.013332 bar
20 mmHg0.026664 bar
25 mmHg0.03333 bar
50 mmHg0.066661 bar
100 mmHg0.133322 bar
250 mmHg0.333305 bar
500 mmHg0.66661 bar
1,000 mmHg1.3332 bar

About this conversion

Pressure conversions are used for tyre pressure (psi or bar), blood pressure readings in mmHg and weather maps in millibars.

Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.

Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.

Frequently asked questions

How many bar are in one millimetres of mercury?

1 mmHg = 0.001333 bar.

How do I convert mmHg to bar?

Bar = millimetres of mercury × 0.00133322.

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