about 138.54 inches
Also to know is, how do you calculate PSI?
Beside above, how many pounds of pressure is in a foot of water? You can work this out with a simple rule: 1 foot of water creates 0.433 psi of pressure, and it takes 2.31 feet of water to create 1 psi of pressure.
Consequently, how many psi are inh20?
1 inH2O = 249.089 pascals (Pa) 1 psi = 6,894.76 pascals (Pa) inH2O value x 249.089 Pa = psi value x 6,894.76 Pa. inH2O value = psi value x 27.6799.
How many PSI is inches of water?
1/28 pound per square inch