Convert Centimeter of Water to Pound per Square Inch
Type the number of cmh₂o that you wish to convert to psi.
How to Convert cmH₂O to PSI
The centimeter of water and pound per square inch are both units of pressure. 1 pound per square inch equals 70.306957964 cmh₂o. This means to convert cmh₂o to psi, you divide by 70.306957964.
Formula
Step-by-Step Example
Convert 5 cmH₂O to psi:
We need to convert cmh₂o to psi
Since 1 psi = 70.306957964 cmH₂O, divide by 70.306957964
5 ÷ 70.306957964 = 0.0711167165
5 cmH₂O = 0.0711167165 psi
Centimeter of Water to Pound per Square Inch Conversion Table
Quick reference table for common centimeter of water to pound per square inch conversions. Click any value for detailed calculation.
| cmH₂O (cmH₂O) | PSI (psi) |
|---|---|
| 1 cmH₂O | 0.0142233433 psi |
| 2 cmH₂O | 0.0284466866 psi |
| 5 cmH₂O | 0.0711167165 psi |
| 10 cmH₂O | 0.1422334331 psi |
| 15 cmH₂O | 0.2133501496 psi |
| 20 cmH₂O | 0.2844668661 psi |
| 25 cmH₂O | 0.3555835827 psi |
| 50 cmH₂O | 0.7111671654 psi |
| 100 cmH₂O | 1.4223343307 psi |
About These Units
Centimeter of Water (cmH₂O)
Centimeters of water (cmH₂O) measure low pressures in medical ventilators, CPAP machines (4-20 cmH₂O), HVAC systems, and manometers. One cmH₂O equals 98.07 Pascals. Based on the pressure exerted by a water column.
Pound per Square Inch (psi)
Pounds per square inch (PSI or lbf/in²) is the standard pressure unit in the United States. PSI measures tire pressure (30-35 PSI for cars), air compressors, water pressure, and HVAC systems. One PSI equals approximately 6.895 kPa or 0.0689 bar.
Frequently Asked Questions
How do I convert cmh₂o to psi?
To convert cmh₂o to psi, divide the value by 70.306957964. For example, 10 cmH₂O = 0.1422334331 psi.
How many psi are in 1 centimeter of water?
1 centimeter of water equals 0.0142233433 psi.
What is the formula for cmh₂o to psi?
The formula is: psi = cmH₂O ÷ 70.306957964.