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Pressure

PatomH₂O

Convert pascals (Pa) to metres of water column (mH₂O).

Factor1 Pa = 0.0001019716 mH₂O

Converter

Pa

Accepts numbers or expressions, e.g. 150 + 14.7

Result
10.1972mH₂O

Rendered to 6 significant figures.

Formula

Formula
mH₂O = Pa × 0.0001019716

Multiply any value in pascals by 0.0001019716 to obtain the value in metres of water column.

Worked example

Convert 100000 Pa to mH₂O.

  1. 01Start with 100000 Pa.
  2. 02Multiply by the conversion factor: 100000 × 0.0001019716 = 10.1972 mH₂O.
Result100000 Pa = 10.1972 mH₂O

Conversion table

PamH₂O
10.00010197
20.00020394
50.00050986
100.0010197
200.0020394
500.0050986
1000.010197
2000.020394
5000.050986
10000.10197

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from Pa to mH₂O?
1 Pa equals 0.0001019716 mH₂O. To convert, multiply the value in pascals by 0.0001019716.
How do I convert 1 Pa to mH₂O?
1 Pa = 0.000101972 mH₂O. For any value, multiply by 0.0001019716.
How do I convert mH₂O back to Pa?
Divide by the same factor — or equivalently, multiply by 9806.65. So 1 mH₂O = 9806.65 Pa.
When would I need to convert pascal to metre of water column?
Pressure conversions between Pa 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).

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