Pressure
MPatomH₂O
Convert megapascals (MPa) to metres of water column (mH₂O).
Factor1 MPa = 101.9716 mH₂O
Converter
MPa
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mH₂O
Rendered to 6 significant figures.
Formula
Formula
mH₂O = MPa × 101.9716
Multiply any value in megapascals by 101.9716 to obtain the value in metres of water column.
Worked example
Convert 1 MPa to mH₂O.
- 01Start with 1 MPa.
- 02Multiply by the conversion factor: 1 × 101.9716 = 101.972 mH₂O.
Result1 MPa = 101.972 mH₂O
Conversion table
| MPa | mH₂O |
|---|---|
| 1 | 101.97 |
| 2 | 203.94 |
| 5 | 509.86 |
| 10 | 1019.7 |
| 20 | 2039.4 |
| 50 | 5098.6 |
| 100 | 10197 |
| 200 | 20394 |
| 500 | 50986 |
| 1000 | 1.0197e+5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from MPa to mH₂O?
1 MPa equals 101.9716 mH₂O. To convert, multiply the value in megapascals by 101.9716.
How do I convert 1 MPa to mH₂O?
1 MPa = 101.972 mH₂O. For any value, multiply by 101.9716.
How do I convert mH₂O back to MPa?
Divide by the same factor — or equivalently, multiply by 0.00980665. So 1 mH₂O = 0.00980665 MPa.
When would I need to convert megapascal to metre of water column?
Pressure conversions between MPa and mH₂O 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).