Boiling Point Calculator (Water)

Enter the water pressure into the calculator below to determine the boiling point.

Boiling Point Formula

The following equation is used to calculate the boiling point of water under a certain pressure.

bp = 49.161 * ln(p) + 44.932

To calculate the boiling point of water, multiply the natural log of the water pressure by 49.161, then add 44.932.

A boiling point measures the total temperature required for a liquid to begin boiling.

First, measure the pressure.
Calculate the pressure of the air surrounding the water.
Next, calculate the boiling point.
Calculate the boiling point using the equation above.

What is the boiling point of water?

The boiling point of water is dependent on the atmospheric pressure around the water and can be calculated using the formula above.