Help with calculating pressure?

pressure = depth*density

depth = pressure/density

since density is in kg/m^3;

convert pressure in Pacals to kg/m^2

1Pa = 0.10197 kg/m^2

80MPa = 8.1578E6 kg/m^2

then;

depth = 8.1578E6/1100

depth = 7.416 km ...... Answer

1 Pascal = 1 kg/(meter sec²) (Wikipedia)

Pressure = density*g* depth where g is the acceleration of gravity (9. 8 meter per second²)

Think of cubes of water 1 meter x 1 meter x 1 meter stacked upon each other.

80 MPa = 8 x 10^7 kg/(meter sec²) = (1100 kg/m³)(9.8 m/s²)(depth)

depth = (8 x 10^70/((1100)(9.8)) = 7,420 meters = 7.42 km, this is about 4.61 miles

80MPa = 11603 PSI

Specific Gravity Sea Water = 1.1

27.7 inch water column = 1 PSI, for sea water 27.7 / 1.1 = 25.18 inch

So 11603 X 25.18 = 292184 inches

292184 / 24 = 12,174.35 feet depth