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)

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)