Science

Physics

Oceans and Seas

Marine

# What is the pressure at 12000 ft deep?

###### Wiki User

###### September 15, 2007 5:55AM

5217.0285 pounds per square inch at 12,000 ft deep.

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### What is the ocean pressure at 3000 feet deep?

At sea level, you have one atmosphere of pressure(14.7 psi).
Every 33 ft that you descend adds another atmosphere of pressure.
Therefore 3000 ft/33 ft=90.91 ATM. Now add the one atmosphere at
the surface to get 91.91 ATM of pressure at 3000 ft depth. Also,
91.91 ATM times 14.7 psi per ATM of pressure equals 1,351 psi.