Enter the formation bulk density (ppg) and the true vertical depth (ft) into the calculator to determine the Overburden Pressure.

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## Overburden Pressure Formula

The following formula is used to calculate the Overburden Pressure.

Po = .052 * pb * D

- Where Po is the Overburden Pressure (psi)
- pb is the formation bulk density (ppg)
- D is the true vertical depth (ft)

To calculate an overburden pressure, multiply the formation bulk density by the true vertical depth, then multiply by .052.

## How to Calculate Overburden Pressure?

The following two example problems outline how to calculate the Overburden Pressure.

**Example Problem #1:**

- First, determine the formation bulk density (ppg). In this example, the formation bulk density (ppg) is given as 150.
- Next, determine the true vertical depth (ft). For this problem, the true vertical depth (ft) is given as 500.
- Finally, calculate the Overburden Pressure using the equation above:

Po = .052 * pb * D

Inserting the values from above and solving the equation:

Po = .052 * 150 * 500 = 3900 (psi)

**Example Problem #2: **

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

formation bulk density (ppg) = 1055

true vertical depth (ft) = 35

Entering these values yields:

Po = .052 * 35 * 1044 = 1900.08 (psi)