Atmospheres to Inches Of Mercury

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

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1 atm = 29.921256 inHg

1 atmosphere equals29.92125558 inHg
1 inch of mercury equals0.03342105739 atm
FormulainHg = atm × 29.92125558

How to convert atmospheres to inches of mercury

To convert atmospheres to inches of mercury, multiply the number of atmospheres by 29.92125558.

inHg = atm × 29.92125558

Example

Convert 5 atmospheres to inches of mercury:

5 atm × 29.92125558 = 149.606 inHg

Atmosphere to inch of mercury conversion chart

Atmospheres to inches of mercury
Atmospheres (atm)Inches Of Mercury (inHg)
1 atm29.92126 inHg
2 atm59.84251 inHg
3 atm89.76377 inHg
4 atm119.685 inHg
5 atm149.6063 inHg
6 atm179.5275 inHg
7 atm209.4488 inHg
8 atm239.37 inHg
9 atm269.2913 inHg
10 atm299.2126 inHg
12 atm359.0551 inHg
15 atm448.8188 inHg
20 atm598.4251 inHg
25 atm748.0314 inHg
30 atm897.6377 inHg
40 atm1,196.85 inHg
50 atm1,496.063 inHg
60 atm1,795.275 inHg
70 atm2,094.488 inHg
75 atm2,244.094 inHg
80 atm2,393.7 inHg
90 atm2,692.913 inHg
100 atm2,992.126 inHg
150 atm4,488.188 inHg
200 atm5,984.251 inHg
250 atm7,480.314 inHg
500 atm14,960.63 inHg
1,000 atm29,921.26 inHg

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

About the units

Atmosphere (atm)

A standard atmosphere is exactly 101,325 pascals, average air pressure at sea level.

Inch Of Mercury (inHg)

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

Frequently asked questions

How many inches of mercury are in an atmosphere?

There are 29.92125558 inches of mercury in an atmosphere.

How many atmospheres are in an inch of mercury?

There are 0.03342105739 atmospheres in an inch of mercury.

How do you convert atmospheres to inches of mercury?

To convert atmospheres to inches of mercury, multiply the number of atmospheres by 29.92125558.

What is 5 atmospheres in inches of mercury?

5 atmospheres equals 149.606 inches 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.