Enter the partial pressure of each gas (atm) into the calculator to determine the Total Pressure.

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## Total Pressure Formula

The following formula is used to calculate the Total Pressure.

Ptotal = Σ Ppartials

- Where Ptotal is the Total Pressure (atm)
- Ppartials are the partial pressures of each gas (atm)

To calculate total pressure, simply sum the partial pressures of each gas.

## How to Calculate Total Pressure?

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

**Example Problem #1:**

- First, determine the partial pressure of each gas (atm). In this example, the partial pressure of each gas (atm) is given as 12,35,6.
- Finally, calculate the Total Pressure using the equation above:

Ptotal = Σ Ppartials

Inserting the values from above and solving the equation with the imputed values gives:

Ptotal =12+35+6 =53 (atm)

**Example Problem #2: **

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

partial pressure of each gas (atm) = 5,6,87

Entering these values yields:

Ptotal = 5+6+87 = 98 (atm)