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Pressure
Psi to InHg
Convert psi (psi) to inHg (inHg). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 psi = 2.036 inHg
Psi to InHg Conversion Table
Common values, ready to copy:
| psi | inHg |
|---|---|
| 1 psi | 2.036 inHg |
| 2 psi | 4.072 inHg |
| 5 psi | 10.1801 inHg |
| 10 psi | 20.3602 inHg |
| 25 psi | 50.9005 inHg |
| 50 psi | 101.8 inHg |
| 100 psi | 203.6 inHg |
| 1,000 psi | 2036.02 inHg |
Formula
inHg = psi × 2.03602066e+0
Pressure is force per area. 1 atm = 101.325 kPa = 14.696 psi = 760 mmHg. Bar is a metric working unit close to atmospheric pressure (1 bar = 100 kPa).
About Psi and InHg
Psi (psi): Pounds-force per square inch, the customary US pressure unit; 1 psi = 6,894.76 Pa. Common uses: US tire pressure (car tires typically 30-35 psi), US gas grills (10-12 psi propane), industrial hydraulics in the US, and US plumbing pressure specifications.
InHg (inHg): Inches of mercury, the imperial equivalent of mmHg; 1 inHg = 25.4 mmHg by definition. Common uses: US weather reports (atmospheric pressure in inches of mercury, standard sea-level pressure ≈ 29.92 inHg), US aviation altimeter settings, and some US vacuum-system contexts.
How the conversion works
Pressure is force per area. 1 atm = 101.325 kPa = 14.696 psi = 760 mmHg. Bar is a metric working unit close to atmospheric pressure (1 bar = 100 kPa).
The exact relationship is inHg = psi × 2.03602066e+0, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between psi and inHg comes up wherever pressure measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.