Convert inHg to psi
inches of mercury to pounds per square inch. Enter a value to convert, or use the inHg to psi chart further down the page.
1 inch of mercury equals 0.491154 pounds per square inch. Going the other way, 1 pound per square inch = 2.03602 inches of mercury.
How to convert inHg to psi
To convert inches of mercury to pounds per square inch, multiply the inch of mercury value by 0.4911541475. You can also divide by 2.036020677 to get the same answer.
psi = inHg × 0.4911541475
Worked example
Convert 15 inHg to pounds per square inch:
15 inHg = 7.36731 psi
inHg to psi conversion chart
Use this inHg to psi table for quick reference without typing anything.
| inches of mercury (inHg) | pounds per square inch (psi) |
|---|---|
| 0.01 inHg | 0.00491154 psi |
| 0.1 inHg | 0.0491154 psi |
| 1 inHg | 0.491154 psi |
| 2 inHg | 0.982308 psi |
| 3 inHg | 1.47346 psi |
| 5 inHg | 2.45577 psi |
| 10 inHg | 4.91154 psi |
| 20 inHg | 9.82308 psi |
| 50 inHg | 24.5577 psi |
| 100 inHg | 49.1154 psi |
| 1,000 inHg | 491.154 psi |
What is a inch of mercury?
An inch of mercury is about 3,386.39 pascals. Aircraft altimeters and US weather reports use it; the standard sea-level setting is 29.92 inHg.
What is a pound per square inch?
One psi is one pound-force per square inch, about 6,894.76 pascals. It is the standard pressure unit for tyres and hydraulics in the US.
Frequently asked questions
How many psi are in a inch of mercury?
1 inHg equals 0.491154 psi. Going the other way, 1 psi is 2.03602 inHg.
How do you convert inHg to psi?
To convert inches of mercury to pounds per square inch, multiply the inch of mercury value by 0.4911541475. You can also divide by 2.036020677 to get the same answer.
What is 10 inHg in psi?
10 inHg equals 4.91154 psi. The conversion chart on this page lists the other values people look up most often.
Related pressure conversions
Convert inHg to other units
- psi to inHg
- inHg to bar
- inHg to pascals
- inHg to kPa
- inHg to atm
- inHg to mmHg
- inHg to torr
- inHg to millibars
Convert other units to psi
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