Enter the Specific Gravity into the calculator to determine the Plato.

Specific Gravity To Plato Formula

The following formula is used to calculate the Plato from Specific Gravity.

Plato = (-1 * 616.868) + (1111.14 * SG) – (630.272 * SG^2) + (135.997 * SG^3)

Variables:

  • Plato is the degree Plato (°P), which is a scale of measurement of the concentration of extract (mainly sugars derived from malt but also including other soluble material in beer) as a percentage by weight.
  • SG is the Specific Gravity, which is the ratio of the density of a substance to the density of a reference substance.

To calculate the Plato from Specific Gravity, multiply the Specific Gravity by 1111.14, then subtract 616.868. Then, square the Specific Gravity, multiply it by -630.272, and add the result to the previous result. Finally, cube the Specific Gravity, multiply it by 135.997, and add the result to the previous result.

What is Specific Gravity To Plato?

Specific Gravity to Plato is a conversion used in brewing to measure the concentration of dissolved solids in a brewery wort. Plato degrees (°P) is a scale used to quantify the concentration of extract (mainly sugars derived from malt but also including other soluble material in wort) as a percentage by weight. Specific gravity, on the other hand, is a measure of the relative density of a liquid. Therefore, converting specific gravity to Plato degrees allows brewers to better understand the sugar content and potential alcohol content of the beer they are brewing.

How to Calculate Specific Gravity To Plato?

The following steps outline how to calculate the Specific Gravity To Plato using the given formula:


  1. First, gather the values of SG and Plato.
  2. Next, insert the values into the formula: Plato = (-1 * 616.868) + (1111.14 * SG) – (630.272 * SG^2) + (135.997 * SG^3).
  3. Finally, calculate the Plato value using the formula.
  4. After calculating the result, check your answer with the calculator above.

Example Problem:

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

SG = 1.050

Plato = ?