Asked in Units of MeasureOceans and SeasElevationsThe River Nile
What is the PSI at 400 feet below sea level?
February 06, 2010 5:41PM
The pressure of liquid acting on a container or other body increases at the rate of 1 atmosphere or about 14.7 lbs. per square inch for every increase of 33 feet in depth. So doing the math results in: 400ft./33ft. = 12.121. Multiplying that by 14.7 lbs. per square inch yields about 178 lbs. per square inch at 400 feet deep.