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Pressure Formula

Explore more about the pressure formula with solved examples.

Pressure Formula

Everything you need to know about the pressure formula is provided below. Please proceed to read the whole document carefully to understand the topic completely.

The power applied by one thing on one more is known as pressure. Per unit region, the power applied to the object is opposite to the thing’s surface. P is the ideal image for it.

The strain is verbalised as power per unit region enunciated as


F = Force applied by the body (N)

A = Total region of the item (m2)

Force, thickness, region, tension, level, and gravity are totally determined utilising the Pressure Formula. Pascal is the unit of tension (Pa).

Water Pressure Formula

The power applied per unit area of water moving through a channel or line is alluded to as water pressure.

Consider the instance of an individual swimming submerged. The more noteworthy the water pressure, the further the swimmer swims. The individual is just inclination pressure in light of the water above him. That, yet the thickness of the fluid likewise influences the water pressure.

Water Pressure Equation

The water pressure calculation formula is given as:

P = ρgh


ρ = density of water in kg/m3

g = gravitational force in 9.81 m/s2

h = height in m, and

P is the water pressure in Pa

Also see:

Displacement formula

Voltage drop formula

Gravity formula

Magnetic flux formula

Molar concentration formula

Wavelength formula

Solved Examples

1. There is a water tank with a height of 9 m filled with water. Using the water pressure formula, you need to calculate its pressure at the bottom.


Density of water = 1000 kg/m3

g= 10 m/s2

Height = 9 m

As a result, the water pressure on the tank will be

P = hg

P = 1000 x 9 x 10

P = 90,000 Pa

Consequently, the water pressure on the tank will be 90,000 pa.

2. A tank filled with water of up to 5m height. Calculate the pressure exerted on the bottom of the tank.

(Acceleration due to Gravity = 9.8 m/s2, Density of water = 1000 kg / m3).


Acceleration due to Gravity = 9.8 m/s2

Density of water = 1000 kg / m3,

The pressure is articulated as

P = ρ × g × h

P = 1000 × 9.8 × 5mP = 49000 Pascal.

3. If the wreckage of the ship that sank in the ocean is 2,800 m under the ocean water. Also, the density of cold saltwater above it is 999 Kg/m3. Then calculate the pressure at that depth?


By using the pressure formula, we can find the pressure on the sunk ship.

Now let’s apply the pressure formula, which is

P = ρ × g × h

P = (999 kg/m3) (9.80m/s2) (2800 m)

P = 27412560kg⋅s2

Or P = 27412560 Pa

For a simpler form we can convert it into Mega-Pascal, that is 27.1 MPa.

Important formulas:

Acceleration formulaEnergy density formulaStress formula
Power formulaHeat capacity formulaSpring force formula
Kelvin to celsius formulaThermal expansion formulaStrain energy formula
Impulse formulaLinear momentum formulaAverage speed formula

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