Pressure is the weight of the fluid mg divided by the area A supporting it (the area of the bottom of the container): P=mgA. Pressure due to the weight of a liquid is given by ...Pressure is the weight of the fluid mg divided by the area A supporting it (the area of the bottom of the container): P=mgA. Pressure due to the weight of a liquid is given by P=hρg, where P is the pressure, h is the height of the liquid, ρ is the density of the liquid, and g is the acceleration due to the gravity.
