Enter the total weight and the weight or percentage of Metal A into the calculator to determine the missing variable in the alloy composition.

Alloy Percent Calculator

Enter exactly 2 values to calculate the missing variable


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Alloy Percent Formula

The following formula is used to calculate the percentage of Metal A in an alloy.

P_A = (W_A / W_T) * 100

Variables:

  • PA is the percentage of Metal A
  • WA is the weight of Metal A
  • WT is the total weight of the alloy

To calculate the percentage of Metal A, divide the weight of Metal A by the total weight of the alloy and multiply the result by 100.

What is an Alloy Percent?

An alloy percent refers to the proportion of a specific metal within an alloy, expressed as a percentage. Alloys are mixtures of two or more metals, or a metal and another element, designed to have specific properties. The percentage of each metal in the alloy determines its characteristics, such as strength, ductility, and resistance to corrosion. Knowing the alloy percent is crucial in industries like metallurgy, manufacturing, and materials science, where precise compositions are necessary for producing materials with desired properties.

How to Calculate Alloy Percent?

The following steps outline how to calculate the Alloy Percent.


  1. First, determine the total weight of the alloy (WT).
  2. Next, determine the weight of Metal A (WA).
  3. Finally, calculate the percentage of Metal A using the formula PA = (WA / WT) * 100.
  4. After inserting the values 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.

Total weight of the alloy (WT) = 500 g

Weight of Metal A (WA) = 150 g