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mmH₂O to Pa converter

Convert millimetres of water (mmH₂O) to pascals (Pa). 1 mmH₂O = 9.80665 Pa.

Calculating…

Conversion factor

1 mmH₂O = 9.80665 Pa · 1 Pa = 0.101972 mmH₂O

mmH₂O to Pa table

mmH₂OPa
10 mmH₂O98.0665 Pa
25 mmH₂O245.166 Pa
50 mmH₂O490.332 Pa
100 mmH₂O980.665 Pa
200 mmH₂O1,961.33 Pa
250 mmH₂O2,451.66 Pa
500 mmH₂O4,903.32 Pa
1,000 mmH₂O9,806.65 Pa
2,000 mmH₂O19,613.3 Pa
5,000 mmH₂O49,033.25 Pa
10,000 mmH₂O98,066.5 Pa

1 bar = 14.504 psi = 100 kPa = 29.53 inHg. Gauge pressure (barg, psig) is measured above atmospheric; absolute pressure (bara, psia) adds about 1.013 bar / 14.7 psi. This converter changes units only. For vacuum readings, use the vacuum converter.

inHg and mmHg values assume mercury at 0 °C; inH₂O uses water at 4 °C. Those are the conventional definitions used by most gauge makers.