Convert Megapascals to Inches of mercury
1 megapascal is 295.299802 inHg. One megapascal is exactly 295.299801647 inches of mercury.
One megapascal is 295.2998 inches of mercury. To convert megapascals to inches of mercury, multiply by 295.2998; to go the other way, divide by 295.2998 or multiply by 0.003386389. The factor is exact rather than rounded: it follows from NIST Special Publication 811. A million pascals.
Factor checked against the defining standard · How we check
- Megapascals × 295.2998
value * 295.299801647295.3 inHg
1 megapascal in every pressure unit
| Unit | Value | Exact factor |
|---|---|---|
| pounds per square inch | 145.0377377 psi | × 145.03773773 |
| bars | 10 bar | × 10 |
| pascals | 1,000,000 Pa | × 1,000,000 |
| kilopascals | 1,000 kPa | × 1,000 |
| megapascals (as entered) | 1 MPa | — |
| atmospheres | 9.869232667 atm | × 9.86923266716 |
| torr | 7,500.616827 Torr | × 7,500.61682704 |
| inches of mercury | 295.2998016 inHg | × 295.299801647 |
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 megapascals to inches of mercury?
- 1.Take the measurement in megapascals.
- 2.Multiply by 295.2998 — that is how many inches of mercury fit in one megapascal.
- 3.To go back the other way, divide by 295.2998, or multiply by 0.003386389.
Worked example: 25 megapascals to inches of mercury
- Formula
- MPa × 295.2998 = inHg
- Arithmetic
- 25 × 295.2998 = 7,382.495041 inHg
- Answer
- 25 MPa = 7,382.495041 inHg
The factor is rounded for display; the figure above is computed from the full value.
Megapascals to inches of mercury conversion table
| Megapascals | Inches of mercury |
|---|---|
| 1 MPa | 295.299802 inHg |
| 2 MPa | 590.599603 inHg |
| 3 MPa | 885.899405 inHg |
| 4 MPa | 1,181.199207 inHg |
| 5 MPa | 1,476.499008 inHg |
| 6 MPa | 1,771.79881 inHg |
| 7 MPa | 2,067.098612 inHg |
| 8 MPa | 2,362.398413 inHg |
| 9 MPa | 2,657.698215 inHg |
| 10 MPa | 2,952.998016 inHg |
| 12 MPa | 3,543.59762 inHg |
| 15 MPa | 4,429.497025 inHg |
| 20 MPa | 5,905.996033 inHg |
| 25 MPa | 7,382.495041 inHg |
| 50 MPa | 14,764.990082 inHg |
| 100 MPa | 29,529.980165 inHg |
| 200 MPa | 59,059.960329 inHg |
| 300 MPa | 88,589.940494 inHg |
| 500 MPa | 147,649.900823 inHg |
| 1000 MPa | 295,299.801647 inHg |
| 2000 MPa | 590,599.603294 inHg |
| 5000 MPa | 1,476,499.008235 inHg |
| 10000 MPa | 2,952,998.01647 inHg |
What is a megapascal?
A million pascals. Concrete strength and hydraulic ratings are specified here: 30 MPa concrete is about 4,350 psi.
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 megapascal?
One megapascal is 295.2998 inches of mercury. Going the other way, one inch of mercury is 0.003386389 megapascals. 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 megapascal?
- 295.2998. 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 megapascals?
- Divide by 295.2998, or multiply by 0.003386389 — they are the same operation.
Other pressure conversions
Inches of mercury to megapascals — the same conversion the other way.