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

- All Pressure Calculators
- Water Pressure Elevation Calculator
- Water Pressure Calculator
- Stagnation Pressure Calculator
- Density to Pressure Calculator
- Brake Pressure Calculator
- Water Vapor Pressure Calculator

## 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:**

- First, determine the mass of the water (kg). In this example, the mass of the water (kg) is given as 40.
- Next, determine the total area (m^2). For this problem, the total area (m^2) is given as 100.
- 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)