Inches of Mercury to Atmospheres

Convert Inches of Mercury to Atmospheres. 1 inHg equals 0.033421 atm. Type a value on either side; the formula and tables below show how it works.

inHg
atm
1 Inches of Mercury equals
0.033421atm

Formula: atm = inHg × 0.033421. Example: 5 inHg = 0.167105 atm.

1 Inches of Mercury in every unit

PSI0.491154 psi
Bar0.033864 bar
Kilopascals3.3864 kPa
Pascals3,386.39 Pa
Atmospheres0.033421 atm
Millimeters of Mercury25.4 mmHg
Hectopascals33.8639 hPa

Inches of Mercury to Atmospheres table

Inches of MercuryAtmospheres
0.1 inHg0.003342 atm
0.25 inHg0.008355 atm
0.5 inHg0.016711 atm
1 inHg0.033421 atm
2 inHg0.066842 atm
3 inHg0.100263 atm
4 inHg0.133684 atm
5 inHg0.167105 atm
10 inHg0.334211 atm
15 inHg0.501316 atm
20 inHg0.668421 atm
25 inHg0.835526 atm
50 inHg1.6711 atm
75 inHg2.5066 atm
100 inHg3.3421 atm
250 inHg8.3553 atm
500 inHg16.7105 atm
1,000 inHg33.4211 atm
AtmospheresInches of Mercury
0.1 atm2.9921 inHg
0.25 atm7.4803 inHg
0.5 atm14.9606 inHg
1 atm29.9213 inHg
2 atm59.8425 inHg
3 atm89.7638 inHg
4 atm119.685 inHg
5 atm149.6063 inHg
10 atm299.2126 inHg
15 atm448.8188 inHg
20 atm598.4251 inHg
25 atm748.0314 inHg
50 atm1,496.06 inHg
75 atm2,244.09 inHg
100 atm2,992.13 inHg
250 atm7,480.31 inHg
500 atm14,960.63 inHg
1,000 atm29,921.26 inHg

How to convert inches of mercury to atmospheres

atm = inHg × 0.033421

Multiply the value in inches of mercury by 0.033421. To go the other way, divide by the same number, or multiply by 29.9213. For example, 5 inHg × 0.033421 = 0.167105 atm.

About the units

Inches of Mercury (inHg). About 3,386 pascals. Barometric pressure in US weather reports and aviation.

Atmospheres (atm). Standard sea-level air pressure, exactly 101,325 pascals.

Other pressure conversions

PSI to Atmospheres · Bar to Atmospheres · Kilopascals to Atmospheres · Pascals to Atmospheres · Atmospheres to PSI · Atmospheres to Bar · Atmospheres to Kilopascals · Atmospheres to Pascals · Atmospheres to Millimeters of Mercury · Atmospheres to Inches of Mercury · Atmospheres to Hectopascals · Millimeters of Mercury to Atmospheres · Inches of Mercury to PSI · Inches of Mercury to Bar · Inches of Mercury to Kilopascals · Inches of Mercury to Pascals · Inches of Mercury to Atmospheres · Inches of Mercury to Millimeters of Mercury · Inches of Mercury to Hectopascals · Hectopascals to Atmospheres

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