Unit Converter › Pressure › inHg → atm
Pressure · scale · base pascal
inHg to atm
1 inch mercury (inHg) = 0.033421057393 atm. Multiply by 0.033421057393. One inch mercury (inHg) is 0.033421057393 atm.
Convert
scale · base pascal
—
| Every unit at once | Value | Unit |
|---|
inHg to atm table
| inch mercury (inHg) | atm | Unit |
|---|---|---|
| 1 inHg | 0.033421057393 | atm |
| 2 inHg | 0.0668421147859 | atm |
| 3 inHg | 0.100263172179 | atm |
| 5 inHg | 0.167105286965 | atm |
| 10 inHg | 0.33421057393 | atm |
| 20 inHg | 0.668421147859 | atm |
| 25 inHg | 0.835526434824 | atm |
| 50 inHg | 1.67105286965 | atm |
| 100 inHg | 3.3421057393 | atm |
| 500 inHg | 16.7105286965 | atm |
| 1,000 inHg | 33.421057393 | atm |
gauge or absolute
Tyre and boiler gauges usually read pressure above the surrounding air, not total pressure. This converter changes units only — it cannot know which zero your gauge uses.