Enter the mass of the water (kg) and the total area (m^2) into the calculator to determine the Gravity Fed Water Pressure. 

Gravity Fed Water Pressure Formula

The following formula is used to calculate the Gravity Fed Water Pressure. 

Pgf = m*g/ A
  • Where Pgf is the Gravity Fed Water Pressure (Pa)
  • m is the mass of the water (kg) 
  • A is the total area (m^2) 
  • g is the acceleration due to gravity ( 9.81 m/s^2)

To calculate gravity fed water pressure, multiply the mass of water by the acceleration due to gravity, then divide by the total area.

How to Calculate Gravity Fed Water Pressure?

The following two example problems outline how to calculate the Gravity Fed Water Pressure.

Example Problem #1:

  1. First, determine the mass of the water (kg). In this example, the mass of the water (kg) is given as 40.
  2. Next, determine the total area (m^2). For this problem, the total area (m^2) is given as 100.
  3. Finally, calculate the Gravity Fed Water Pressure using the equation above: 

Pgf = m*g/ A

Inserting the values from above and solving the equation: 

Pgf = 40*9.81/ 100 = 3.924 (Pa)

Example Problem #2: 

Using the same process as above, first define the variables required by the formula. In this case, these values are:

mass of the water (kg) = 1400

total area (m^2) = 30

Entering these values yields:

Pgf = 1400*9.81/ 30 = 457.8 (Pa)