Pressure
MPatoinHg
Convert megapascals (MPa) to inches of mercury (0 °C) (inHg).
Factor1 MPa = 295.2998 inHg
Converter
MPa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
inHg
Rendered to 6 significant figures.
Formula
Formula
inHg = MPa × 295.2998
Multiply any value in megapascals by 295.2998 to obtain the value in inches of mercury (0 °C).
Worked example
Convert 1 MPa to inHg.
- 01Start with 1 MPa.
- 02Multiply by the conversion factor: 1 × 295.2998 = 295.3 inHg.
Result1 MPa = 295.3 inHg
Conversion table
| MPa | inHg |
|---|---|
| 1 | 295.3 |
| 2 | 590.6 |
| 5 | 1476.5 |
| 10 | 2953 |
| 20 | 5906 |
| 50 | 14765 |
| 100 | 29530 |
| 200 | 59060 |
| 500 | 1.4765e+5 |
| 1000 | 2.9530e+5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from MPa to inHg?
1 MPa equals 295.2998 inHg. To convert, multiply the value in megapascals by 295.2998.
How do I convert 1 MPa to inHg?
1 MPa = 295.3 inHg. For any value, multiply by 295.2998.
How do I convert inHg back to MPa?
Divide by the same factor — or equivalently, multiply by 0.003386389. So 1 inHg = 0.00338639 MPa.
When would I need to convert megapascal to inch of mercury (0 °C)?
Pressure conversions between MPa and inHg are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).