Water Pressure Calculators
Water Column to PSI Calculator
Convert Millimetres of Water Column (mmH₂O) to Pounds per Square Inch (PSI) instantly with the exact pressure conversion factor.
Enter calculator values
Pounds per Square Inch result
0PSI
Live result diagram
PSI = mmH₂O × 0.001422334331
1 mmH₂O = 0.001422334331 PSI
0%Live value100%
mmH₂O to PSI conversion table
| mmH₂O | PSI |
|---|---|
| 0.1 | 0.00014223343 |
| 0.5 | 0.00071116717 |
| 1 | 0.0014223343 |
| 2 | 0.0028446687 |
| 5 | 0.0071116717 |
| 10 | 0.014223343 |
| 25 | 0.035558358 |
| 50 | 0.071116717 |
| 100 | 0.14223343 |
Frequently asked questions about Water Column to PSI Calculator
How do I use the Water Column to PSI Calculator?
Enter a value in mmH₂O. The calculator multiplies it by 0.001422334331 to return PSI.
What is the mmH₂O to PSI formula?
PSI = mmH₂O × 0.001422334331.
Can the Water Column to PSI Calculator handle decimals?
Yes. It accepts whole numbers and decimal pressure values and updates the result instantly.
Is this Water Column to PSI Calculator accurate?
Yes. The calculation uses pressure-unit definitions expressed through the pascal and retains practical numerical precision.