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Inches Of Mercury to Millimeters Of Mercury

Convert inches of mercury (inHg) to millimeters of mercury (mmHg). Type in either box; the other updates as you go.

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1 inHg = 25.4 mmHg

1 inch of mercury equals25.4 mmHg
1 millimeter of mercury equals0.03937007874 inHg
FormulammHg = inHg × 25.4

How to convert inches of mercury to millimeters of mercury

To convert inches of mercury to millimeters of mercury, multiply the number of inches of mercury by 25.4.

mmHg = inHg × 25.4

Example

Convert 5 inches of mercury to millimeters of mercury:

5 inHg × 25.4 = 127 mmHg

Inch Of Mercury to millimeter of mercury conversion chart

Inches Of Mercury (inHg)Millimeters Of Mercury (mmHg)
1 inHg25.4 mmHg
2 inHg50.8 mmHg
3 inHg76.2 mmHg
4 inHg101.6 mmHg
5 inHg127 mmHg
6 inHg152.4 mmHg
7 inHg177.8 mmHg
8 inHg203.2 mmHg
9 inHg228.6 mmHg
10 inHg254 mmHg
12 inHg304.8 mmHg
15 inHg381 mmHg
20 inHg508 mmHg
25 inHg635 mmHg
30 inHg762 mmHg
40 inHg1,016 mmHg
50 inHg1,270 mmHg
60 inHg1,524 mmHg
70 inHg1,778 mmHg
75 inHg1,905 mmHg
80 inHg2,032 mmHg
90 inHg2,286 mmHg
100 inHg2,540 mmHg
150 inHg3,810 mmHg
200 inHg5,080 mmHg
250 inHg6,350 mmHg
500 inHg12,700 mmHg
1,000 inHg25,400 mmHg

Going the other way? See the millimeters of mercury to inches of mercury chart.

About the units

Inch Of Mercury (inHg)

An inch of mercury is about 3,386 pascals. US weather reports and aviation altimeters use inHg.

Millimeter Of Mercury (mmHg)

A millimeter of mercury is about 133.3 pascals. Blood pressure is measured in mmHg.

Frequently asked questions

How many millimeters of mercury are in an inch of mercury?

There are 25.4 millimeters of mercury in an inch of mercury.

How many inches of mercury are in a millimeter of mercury?

There are 0.03937007874 inches of mercury in a millimeter of mercury.

How do you convert inches of mercury to millimeters of mercury?

To convert inches of mercury to millimeters of mercury, multiply the number of inches of mercury by 25.4.

What is 5 inches of mercury in millimeters of mercury?

5 inches of mercury equals 127 millimeters of mercury.

Convert between psi, bar, kilopascals, atmospheres and millimeters of mercury. Open the pressure converter to see a value in every unit at once.