Multiply inches of WC by 0.0361 to obtain PSI.
Chat with our AI personalities
Multiply by 0.036 http://www.enercongroup.com/conversion_factors.htm One PSI is equal to 27.7 inches of water column
.4 psi
You need to multiply by 0.036. So 5 x 0.036=.18 psi
Inches of water x 0.03613 = psi
10 psi.