Convert Pound per Square Inch to Centimeter of Water
Input the number of psi you want to convert to cmh₂o.
How to Convert PSI to cmH₂O
The pound per square inch and centimeter of water are both units of pressure. 1 pound per square inch equals 70.306957964 cmh₂o. This means to convert psi to cmh₂o, you multiply by 70.306957964.
Formula
Step-by-Step Example
Convert 5 psi to cmh₂o:
We need to convert psi to cmh₂o
Since 1 psi = 70.306957964 cmH₂O, multiply by 70.306957964
5 × 70.306957964 = 351.53478982
5 psi = 351.53478982 cmH₂O
Pound per Square Inch to Centimeter of Water Conversion Table
Quick reference table for common pound per square inch to centimeter of water conversions. Click any value for detailed calculation.
| PSI (psi) | cmH₂O (cmH₂O) |
|---|---|
| 1 psi | 70.306957964 cmH₂O |
| 2 psi | 140.61391593 cmH₂O |
| 5 psi | 351.53478982 cmH₂O |
| 10 psi | 703.06957964 cmH₂O |
| 15 psi | 1054.6043695 cmH₂O |
| 20 psi | 1406.1391593 cmH₂O |
| 25 psi | 1757.6739491 cmH₂O |
| 50 psi | 3515.3478982 cmH₂O |
| 100 psi | 7030.6957964 cmH₂O |
About These Units
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.
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.
Frequently Asked Questions
How do I convert psi to cmh₂o?
To convert psi to cmh₂o, multiply the value by 70.306957964. For example, 10 psi = 703.06957964 cmH₂O.
How many cmh₂o are in 1 pound per square inch?
1 pound per square inch equals 70.306957964 cmh₂o.
What is the formula for psi to cmh₂o?
The formula is: cmH₂O = psi × 70.306957964.