Millimeters of water to Pounds per square inch Converter
1 millimeter of water (mmH₂O) equals 0.001422334331 pounds per square inch (psi).
Quick answer
- 1 millimeter of water = 0.001422334331 pounds per square inch
- 1 pound per square inch = 703.0695796 millimeters of water
- Formula: psi = mmH₂O ÷ 703.069579639
1 millimeter of water = 0.001422334331 pounds per square inch
How to convert millimeters of water to pounds per square inch
psi = mmH₂O ÷ 703.069579639
To convert millimeters of water to pounds per square inch, divide the number of millimeters of water by 703.069579639.
Example: 4 mmH₂O to psi
- Start with the value in millimeters of water: 4 mmH₂O.
- Divide by 703.069579639: 4 ÷ 703.069579639 = 0.005689337323.
- Result: 4 millimeters of water = 0.005689337323 pounds per square inch.
Going the other way, 1 pound per square inch = 703.069579639 millimeters of water, so to convert pounds per square inch back to millimeters of water you multiply by the same number. See pounds per square inch to millimeters of water.
Millimeters of water to pounds per square inch conversion table
| Millimeters of water (mmH₂O) | Pounds per square inch (psi) |
|---|---|
| 1 mmH₂O | 0.001422334331 psi |
| 2 mmH₂O | 0.002844668661 psi |
| 3 mmH₂O | 0.004267002992 psi |
| 4 mmH₂O | 0.005689337323 psi |
| 5 mmH₂O | 0.007111671654 psi |
| 6 mmH₂O | 0.008534005984 psi |
| 7 mmH₂O | 0.009956340315 psi |
| 8 mmH₂O | 0.01137867465 psi |
| 9 mmH₂O | 0.01280100898 psi |
| 10 mmH₂O | 0.01422334331 psi |
| 100 mmH₂O | 0.1422334331 psi |
What is a millimeter of water?
The millimeter of water is used for ventilation, duct and chimney draft pressures.
What is a pound per square inch?
The pound per square inch (psi) is the unit of pressure used in the United States for tire pressures, air compressors, water systems and engineering.
Convert millimeters of water to other units
- Millimeters of water to bars
- Millimeters of water to kilopascals
- Millimeters of water to pascals
- Millimeters of water to standard atmospheres
- Millimeters of water to millimeters of mercury
- Millimeters of water to hectopascals
- Millimeters of water to megapascals
- Millimeters of water to inches of mercury
- Millimeters of water to millibars
- Millimeters of water to centimeters of water
- All millimeter of water conversions →
Convert other units to pounds per square inch
- Bars to pounds per square inch
- Kilopascals to pounds per square inch
- Pascals to pounds per square inch
- Standard atmospheres to pounds per square inch
- Millimeters of mercury to pounds per square inch
- Hectopascals to pounds per square inch
- Megapascals to pounds per square inch
- Inches of mercury to pounds per square inch
- Millibars to pounds per square inch
- Centimeters of water to pounds per square inch
- All pound per square inch conversions →
Frequently asked questions
How many pounds per square inch are in a millimeter of water?
One millimeter of water is 0.001422334331 pounds per square inch.
How many millimeters of water are in a pound per square inch?
One pound per square inch is 703.0695796 millimeters of water.
What is the formula to convert millimeters of water to pounds per square inch?
psi = mmH₂O ÷ 703.069579639.