Inches of mercury to Standard atmospheres
1 inHg ≈ 0.03342 atm. Edit either value to convert instantly.
Conversion formula
atm = inHg × (3,386.388640341) × (1 / 101,325)1 inHg ≈ 0.0334211 atm
inch of mercury (inHg)
Inch of mercury is a unit of pressure: 1 inHg = 3,386.388640341 Pa. Uses the conventional mercury column at 0 °C under standard gravity.
Source: NIST SP 811, Appendix B.9: conversion factors by quantity
standard atmosphere (atm)
Standard atmosphere is a unit of pressure: 1 atm = 101,325 Pa.
Source: NIST SP 811, Appendix B.9: conversion factors by quantity
Conversion table
| inHg | atm |
|---|---|
| ≈ 0.0334211 | |
| ≈ 0.0668421 | |
| ≈ 0.167105 | |
| ≈ 0.334211 | |
| ≈ 0.501316 | |
| ≈ 0.668421 | |
| ≈ 0.835526 | |
| ≈ 1.00263 | |
| ≈ 1.33684 | |
| ≈ 1.50395 |
| inHg | atm |
|---|---|
| ≈ 1.67105 | |
| ≈ 2.00526 | |
| ≈ 2.33947 | |
| ≈ 2.67368 | |
| ≈ 3.0079 | |
| ≈ 3.34211 | |
| ≈ 5.01316 | |
| ≈ 5.34737 | |
| ≈ 5.68158 | |
| ≈ 6.01579 |
Frequently asked questions
How many standard atmospheres are in 1 inch of mercury?
1 inHg ≈ 0.03342 atm. atm = inHg × (3,386.388640341) × (1 / 101,325)
How do I convert inHg to atm?
atm = inHg × (3,386.388640341) × (1 / 101,325)
Is 1 inch of mercury bigger than 1 standard atmosphere?
1 inHg ≈ 0.03342 atm.
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