Convert atmosphere to inch of mercury

1 atm = 29.92125558 inHg

1 atm = 29.921 inHg
1 atm in every pressure unit
microbar1,013,300 μbar
barye1,013,300 Ba
millitorr760,000 mTorr
pascal101,330 Pa
millimeter of water column10,332 mmH₂O
pound per square foot2,116.2 lb/ft²
centimeter of water column1,033.2 cmH₂O
hectopascal1,013.3 hPa
millibar1,013.3 mbar
torr760 Torr
millimeter of mercury760 mmHg
inch of water column406.78 in w.g.
kilopascal101.33 kPa
foot of water column33.899 ft H₂O
inch of mercury29.921 inHg
pound per square inch14.696 psi
meter of water column10.332 m H₂O
decibar10.133 dbar
kilogram-force per square centimeter1.0332 kgf/cm²
bar1.0132 bar
atmosphere1 atm
megapascal0.10132 MPa
kip per square inch0.014696 ksi
gigapascal0.00010132 GPa
million pounds per square inch0.000014696 Mpsi
How the conversion works

Multiply by 29.92125558 to go from atmosphere to inch of mercury, or divide by it to go back. Every conversion on this site routes through the SI value (Pa) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.

Going the other way? inch of mercury to atmosphere — 1 inHg = 0.03342105739 atm.

atmosphere to inch of mercury — common values
1 atm29.921256 inHg
2 atm59.842511 inHg
3 atm89.763767 inHg
5 atm149.60628 inHg
10 atm299.21256 inHg
15 atm448.81883 inHg
20 atm598.42511 inHg
25 atm748.03139 inHg
50 atm1,496.0628 inHg
75 atm2,244.0942 inHg
100 atm2,992.1256 inHg
250 atm7,480.3139 inHg
500 atm14,960.628 inHg
1000 atm29,921.256 inHg