Table Of Contents
Inch of mercury to megapascal Conversion
1 inch of mercury (inHg) is equal to 0.00338638864 megapascal (MPa).
1 inHg = 0.00338638864 MPa
or
1 MPa = 295.299833 inHg
Formula
To convert a pressure from inch of mercury (inHg) to megapascal (MPa), divide the pressure in inch of mercury by 295.299833
p(MPa) = p(inHg) / 295.299833
Examples:
Convert 10 inch of mercury to megapascal:
p(MPa) = 10inHg / 295.299833 = 0.0338638864 MPa
Conversion table
| Inch of mercury (inHg) | Megapascal (MPa) |
|---|---|
| 1 inHg | 0.003386389 MPa |
| 2 inHg | 0.006772777 MPa |
| 3 inHg | 0.010159166 MPa |
| 5 inHg | 0.016931943 MPa |
| 10 inHg | 0.033863886 MPa |
| 20 inHg | 0.067727773 MPa |
| 25 inHg | 0.084659716 MPa |
| 50 inHg | 0.169319432 MPa |
| 100 inHg | 0.338638864 MPa |
| 250 inHg | 0.84659716 MPa |
| 500 inHg | 1.69319432 MPa |
| 1000 inHg | 3.38638864 MPa |
| Megapascal (MPa) | Inch of mercury (inHg) |
|---|---|
| 1 MPa | 295.29983301 inHg |
| 2 MPa | 590.59966602 inHg |
| 3 MPa | 885.89949903 inHg |
| 5 MPa | 1476.499165051 inHg |
| 10 MPa | 2952.998330101 inHg |
| 20 MPa | 5905.996660202 inHg |
| 25 MPa | 7382.495825253 inHg |
| 50 MPa | 14764.991650505 inHg |
| 100 MPa | 29529.98330101 inHg |
| 250 MPa | 73824.958252525 inHg |
| 500 MPa | 147649.91650505 inHg |
| 1000 MPa | 295299.833010101 inHg |
Frequently asked questions
How do I convert inch of mercury to megapascal?
Divide the value in inch of mercury by 295.299833 to get the result in megapascal. For example, 5 inHg ÷ 295.299833 = 0.016931943 MPa.
How many megapascal are in 1 inch of mercury?
1 inch of mercury (inHg) is equal to 0.003386389 megapascal (MPa).
How do I convert megapascal back to inch of mercury?
Use the inverse operation: multiply the value in megapascal by 295.299833 to get the result in inch of mercury.
How accurate is the inch of mercury to megapascal conversion?
The converter multiplies by the conversion factor 295.299833 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- ISO 80000-4:2019 — Quantities and units — Part 4: Mechanics
- NIST Guide to the SI, Appendix B.8: Factors for Units Listed Alphabetically (NIST SP 811, 2008 edition)
- Resolution 4 of the 10th CGPM (1954): Definition of the standard atmosphere
