Convert Pounds per square inch to Inches of mercury
1 pound per square inch is 2.03602 inHg. One pound per square inch is exactly 2.03602046108 inches of mercury.
One pound per square inch is 2.0360205 inches of mercury. To convert pounds per square inch to inches of mercury, multiply by 2.0360205; to go the other way, divide by 2.0360205 or multiply by 0.4911542. The factor is exact rather than rounded: it follows from NIST Special Publication 811. A pound-force spread over a square inch.
Factor checked against the defining standard · How we check
- Pounds per square inch × 2.0360205
value * 2.036020461082.036 inHg
1 pound per square inch in every pressure unit
| Unit | Value | Exact factor |
|---|---|---|
| pounds per square inch (as entered) | 1 psi | — |
| bars | 0.06894757293 bar | × 0.0689475729317 |
| pascals | 6,894.757293 Pa | × 6,894.75729317 |
| kilopascals | 6.894757293 kPa | × 6.89475729317 |
| megapascals | 0.006894757293 MPa | × 0.00689475729317 |
| atmospheres | 0.06804596391 atm | × 0.0680459639099 |
| torr | 51.71493257 Torr | × 51.7149325715 |
| inches of mercury | 2.036020461 inHg | × 2.03602046108 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert pounds per square inch to inches of mercury?
- 1.Take the measurement in pounds per square inch.
- 2.Multiply by 2.0360205 — that is how many inches of mercury fit in one pound per square inch.
- 3.To go back the other way, divide by 2.0360205, or multiply by 0.4911542.
Worked example: 25 pounds per square inch to inches of mercury
- Formula
- psi × 2.0360205 = inHg
- Arithmetic
- 25 × 2.0360205 = 50.900512 inHg
- Answer
- 25 psi = 50.900512 inHg
The factor is rounded for display; the figure above is computed from the full value.
Pounds per square inch to inches of mercury conversion table
| Pounds per square inch | Inches of mercury |
|---|---|
| 1 psi | 2.03602 inHg |
| 2 psi | 4.072041 inHg |
| 3 psi | 6.108061 inHg |
| 4 psi | 8.144082 inHg |
| 5 psi | 10.180102 inHg |
| 6 psi | 12.216123 inHg |
| 7 psi | 14.252143 inHg |
| 8 psi | 16.288164 inHg |
| 9 psi | 18.324184 inHg |
| 10 psi | 20.360205 inHg |
| 12 psi | 24.432246 inHg |
| 15 psi | 30.540307 inHg |
| 20 psi | 40.720409 inHg |
| 25 psi | 50.900512 inHg |
| 50 psi | 101.801023 inHg |
| 100 psi | 203.602046 inHg |
| 200 psi | 407.204092 inHg |
| 300 psi | 610.806138 inHg |
| 500 psi | 1,018.010231 inHg |
| 1000 psi | 2,036.020461 inHg |
| 2000 psi | 4,072.040922 inHg |
| 5000 psi | 10,180.102305 inHg |
| 10000 psi | 20,360.204611 inHg |
What is a pound per square inch?
A pound-force spread over a square inch. Exact, because both parts are: it is 4.4482216152605 newtons divided by an inch squared. Every US tyre gauge, air line and pressure washer is marked in it.
What is an inch of mercury?
The pressure of a one-inch column of mercury at 0 °C, fixed by convention at 3,386.389 pascals. US aviation altimeters and barometers read in it.
How many inches of mercury are in a pound per square inch?
One pound per square inch is 2.0360205 inches of mercury. Going the other way, one inch of mercury is 0.4911542 pounds per square inch. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every pressure unit here
| Unit | Symbol | One of these is |
|---|---|---|
| Pounds per square inch | psi | 6894.7573 pascal |
| Bars | bar | 100000 pascal |
| Pascals | Pa | the base unit |
| Kilopascals | kPa | 1000 pascal |
| Megapascals | MPa | 1000000 pascal |
| Atmospheres | atm | 101325 pascal |
| Torr | Torr | 133.32237 pascal |
| Inches of mercury | inHg | 3386.389 pascal |
Questions people actually ask
- How many inches of mercury are in a pound per square inch?
- 2.0360205. The pressure of a one-inch column of mercury at 0 °C, fixed by convention at 3,386.389 pascals. US aviation altimeters and barometers read in it.
- How do I convert inches of mercury back to pounds per square inch?
- Divide by 2.0360205, or multiply by 0.4911542 — they are the same operation.
Other pressure conversions
Inches of mercury to pounds per square inch — the same conversion the other way.