Enter the amount of plaster (oz) and water (oz) into the Calculator. The calculator will evaluate the Plaster To Water Ratio.

## Plaster To Water Ratio Formula

PWR = P / W

Variables:

- PWR is the Plaster To Water Ratio (oz/oz)
- P is the amount of plaster (oz)
- W is the amount of water (oz)

To calculate Plaster To Water Ratio, simply divide the amount of plaster by the amount of water.

## How to Calculate Plaster To Water Ratio?

The following steps outline how to calculate the Plaster To Water Ratio.

- First, determine the amount of plaster (oz).
- Next, determine the amount of water (oz).
- Next, gather the formula from above = PWR = P / W.
- Finally, calculate the Plaster To Water Ratio.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

amount of plaster (oz) = 323

amount of water (oz) = 234